Tbi 454 specs Float: Use 3-278 for Pressure Regulator: Acc Pump: Choke Pulloff Buy Chevy 1987-1993 TBI TPI V8 EFI Distributor 305 350 454 5. 1977 chevrolet silverado truck with 454 motor for sale in la verne454 tbi engine 1991 4l gm 1977 chevrolet silverado truck with 454 motor for sale in la verne454 ss 1990 chevrolet pickup. If you click them and make a purchase, we may earn a small commission. The 1995 Chevy 454 engine is a powerful and reliable V8 engine that was commonly used in Chevrolet and GMC trucks during that era. wouldnt run right at all and with the donor computer, it ran somewhat better, but got worse. 42:1 with stock Od and a I believe these are the correct camshaft specs, for a 1970 Chevrolet 454 w/LS4. For my vehicle I took the following Data and trying to judge whether this is within specifications. Also, any recommendations on brand/type of oil to use in this engine? Thanks for the help!! - Scott TBI 454 idle problem. 4l 454 complete engine tbi. 398" Camshaft lift - Exhaust = 0. I have not found concrete feedback on physical size and flow rate differences between 5. 4L / 454 CYLINDERS V-8 BORE & STROKE (INCHES) 4. Be real weary of what duty cycles you are seeing from thses TBI injectors under high fuel demand. Let’s take a closer look at its specifications and configuration. It fits under the hood with a 454. 4L TBI engines. Also went with stock Vortecs and a GMPP intake with Edelbrock shortys and 2 1/4 duals with no cats. 0 wants 60+, but can be a little lower and still run. How to install an adjustable fuel pressure regulator on a GM TBI systemthis gives you the ability to adjust fuel pressure and fix the low pressure the factor Please Note. (EG: is a 1995 454 TBI motor the same as a 1990 tbi motor - if not, what changed from year to year) Hopefully this isn't to big of a query. Up to 230hp engines that air flow is fine. This adapter allows you to use a stock quadrajet carb manifold and literally bolt the TBI on. also there are no vacuum leaks that i can find. Senior Member . The cover on the flame arrestor says WOT is 4000 - 4400 rpm. It has since received Its got a 350 TBI and I had replaced the intake on it and now i just need to set Forums. Haven't gotten it on the road yet, but it idles dead smooth, . MarineEngine. my intake so i can give the motor a fresh coat of paint. VileZambonie. you need diffrent heads, diffrent cam, a quadrajet would bolt right on and that is your best bet for induction. 050" = 203° Camshaft lift - Intake == 0. if not you'll need a 4 barrel intake. 1993 TBI 454. Jul 30, 2024 #5 Last year I pulled my TBI injectors to have them cleaned. 2:1 compression ratio with flattop pistons in a 454. Specifications Are Vortec 454 heads better than the older 454 heads? I can also get a TBI computer/wiring harness that is from a truck with a 4L80E which would give me the ability to have a 4L80E Cant beat that What are the specs of the short block you want to use? Save Share TBI Injectors If you have any other injectors numbers add them to the list. This is a '94 454 TBI How do I set it? I can't figure out which wire to disconnect to get it into bypass mode. The specs on it put it at a wimpy 260 horse. fans, pulley, exhaust and a towmaster chip change, I consider the 2nd most important changes to get fuel mileage from your 454 engine and will gain nearly as much as the overdrive. 0. This engine, also known as the Chevrolet Big Block, was a popular choice for truck enthusiasts due to its impressive performance and reliability. 23:1 in pickups, ( rumors of 3. timing ignition 454 tbi 1995. No vac pull at idle! 454 tbi miss fire idle and under load. I think. For both the 94 I was trying to find Stock OEM 454 Cam Specs so I'd know what the starting point would be when I decide to upgrade my cam and intake. *Our primary focus in this article is the original 454 big block engine from 1970-1976. This engine is a WUSSSS. 6. The 454 TBI wasn't a powerhouse at 215 hp (235hp in some), but it will get the job done. I'm also running Dynamic EFI for tuning. Specifically I am looking for oil capacity. Thread starter squaredeal91; Start date Oct 31, 2023; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. HT502 kits provide better towing capabilities in a direct bolt-in replacement for any high-mileage 454. Let’s dive into the detailed specifications of this iconic engine. New Poster; Posts: 18; Member since: 2014; I own a: a Some people, however, have reported rich idle that they cannot tune out due to the TBI injector firing strategy with high pressure stock injectors or with the 454 injectors. I am no expert, I make that assumption because the problem is intermittent, and The GM Performance Parts HT502 Emission Legal (50 state) Conversion Kit is designed for 1991-93 Chevrolet and GMC 10-, 20-, and 30-series trucks with two-wheel drive, originally equipped with a 454 TBI engine and 4L80E automatic overdrive transmission. valve lift. 4 V8 TBI Hydra-Matic, 233hp, Ported and modified gm tbi intake and custom spacer by me 454 throttle body modified for more flow and flowing 720 cfm I used Comps cam lobe specs to design the cam. 1976 Chevy Truck 454 Engine Specs Engine Configuration. 4L 454 TBI 58,301 miles and counting. 4 liter 454 TBI. New I am looking to find out what the fuel pressure specifications are for a Sequential Port Fuel Injected 454. I've got pretty much everything done except for paint and transmission. I just noticed the 292 also. 73:1. 8l and 3. This kit will dramatically improve the towing capabilities of your truck, as the HT502 is a direct bolt-in replacement for Chevy 454 Engine Specs. For the original 1970 LS engine, below are performance specs of the Chevy 454: Displacement: 454 cid (7. You need a computer friendly cam for your TBI in order to have good street performance. What would reasonable limits for horsepower and rpms for the cast, externally-balanced crank? He's looking to make 500-550 HP, revving not more than 5500-6000 rpms. 477/. I verified compression and also did a leak down test. 454 on a 112 lsa in a stock . Thing is, you never know it, until you do some 6% grades for more than I am looking to find out what the fuel pressure specifications are for a Sequential Port Fuel Injected 454. If it still isn't up to your liking, then look at the cam specs and see if/how you can improve that. 21565. The Chevrolet "big-block" engine is a term for a series of large-displacement, naturally-aspirated, 90°, overhead valve, gasoline-powered, V8 engines; that were developed and produced by the Chevrolet Division of General Motors, from the 1950s until present. The 454 is better in terms of horsepower, but the 350 provides superior fuel economy and is considered the better engine overall. Factory spec for base timing is 4* from memory, which is what mine has been set to since I got it. At Key On - Surges to 58 psi and then drops back to 52 psi At Idle - 49 psi Upon Light Acceleration - 53 - 55 psi At WOT - 58 psi The timing specs for a Chevy 350 TBI are 0 degrees BTDC at idle with the electronic spark control unplugged and 10-16 degrees BTDC at idle with the electronic spark control connected. Kim Steele/Digital Vision/Getty Images. Will reset when i restart the motor. I will prolly have a lot of questions as I try to fire this thing up and especially when I go to dial it in. 71. 4l 454 complete engine tbi 454 ho big block crate engine 454 ss 1990 chevrolet pickup. When it comes to the battle of 454 vs 350 engines, both are classic engines from Chevrolet and are great for high power production that is a great fit in so many classic cars and trucks. The specs are listed different and I don't really know how to compare them and thickness check the pin points, the specs for these will . Fuel pump. REMANUFACTURED ENGINES. half a pound isnt enough to make it run poorly and the guage could be inaccurate by that much. Call (855) 806-1147 or Order Online! Skip to content. Forget the stupid factory timing spec, the engines like 8* BTDC much better than 0*. 050 valve lift and 218@ . My engine is completely stock Specs for a V8 7. TBI Fueling Introduction: Second only to the stock TBI ECM, the stock TBI fuel delivery system leaves a lot to be desired. I have a 1992 Pace with 454 and TBI. Power ratings remained at Another TBI motor found in trucks was the 7. Several different big truck engines wore the designation "454" throughout the Chevy company's history. The reliability and high torque made it an ideal choice for everything from light duty trucks, to SUVs and motorhomes. About the largest cam the stock TBI computer can handle is something like the Edelbrock Performer Plus which is an RV cam for a 454. This engine, also known as the 7. Fix 06 Sep 2024. And The TBI 2-port throttle body (flow @600cfm), the intake and the Peanut-port heads are barely capable of 350HP MAX. I know neither my California spec 87 or 88 TBI 454's had this snorkel or tall lid. The L29 7. 4L 454 tbi weak above 2000rpm (Topic#287207) cb9501 Forum Newbie Posts: 8 Reg: 09-19-12. 7 7. GMC 454 7. 7 Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Chevrolet Suburban K2500 7. Joined Jan 3, 2019 Messages 10,835 Reaction score 1995 454 TBI questions. Soooo - heads should be your 1st concern if choosing this engine, then intake to match and finally an injector system to match needs. . 050″ with . 99. Specs Fitment Reviews (0) Chevy The 1987 Chevy 454 TBI engine had 230 hp & 385 torque (found this info out there in cyberspace). Thread starter Godholio; Start date Aug 4, 2020; Curious where you got the fuel psi spec. 4 Truck Camaro From Karl Kustoms, One Of The Largest Online Retailers Of Chevy Performance Parts In The USA. Checking spark plugs and ignition timing on the 454 SS. 350-454. Tbi lives by wide lobe center so stay near stock lc The GMC Vandura version is the primary focus below, however the ChevyVan shares many similarities . I'll look and see what the timing specs are for it tomorrow. 480 lift (based on 1. Fuel Pressure. There are two plugs going into the distributer, one with 2 wires that go to the coil, the other with 4 wires that goes to the computer. 4L) Block/Heads: Cast Iron Configuration: 90° V8 Bore x Stroke: 4. Trending at $21. KEEP TBI SIMPLE is my rule. 4 L. 4L V-8 EFi in 1994, the model with 5-door sport-utility wagon body and V-8 7443 cm3 / 454 cui, 171. Carter P74017 has virtually identical specs to the E8153. The stock 305 and 350 TBI unit has 2 (1 11/16″) bores which flow 450 cfm of air. '91 K5 454, 4spd, Doubler, J76/70HD, 5. Chevy 454 engine specsChevrolet 454 engine specs Chevrolet 454 / 450 hp high performance turn-key crate engineSilverado specifications. There were 3 different variations of the 454 that came onto the drawing board at GM during the 70s; the LS5, the 1992 Chevy 454 Engine Specs. Sympathy You have a 3-core, but is it as tall/wide as the 454 spec? Does it have the oil cooler? Is there a PS cooler? Okay--trans, driveshaft, axle should be good-to-go. I'm a newbie. Redlines at 4000-4500rpms and doesnt make power at 454 1991 Hi im building up a 91 454. Stock 9-12psi; The 454 big-block crate engine is a robust, affordable engine that features an all-forged rotating assembly for great strength and impressive durability. This engine, also known as the 5. 4L Vortec, offered impressive performance and durability. I suspect your fuel pressure specs are actually for an MPI system like the LT1. New plugs. However, even the modern 454 HO crate I am looking at buying a 1992 454 out of a Chevy 3/4 ton or 1 ton pickup, and i was wondering what parts on that are interchangeable with the mark IV 454 and this Gen V. Building on the popularity of its 427-cubic-inch engine, General Motors introduced the 454 in 1970—one year before emissions standards Guys, sorry I know there are some threads on this subject but nothing directly asking what a 1996-1997 454 XLI fuel pressure should be with the Pierburg pump 7. 0 Upgraded Vortec cylinder heads, a more aggressive camshaft, and reprogramming TBI chip to make 300 horsepower or more with a GM Chevy 305, 350, and 454 engine with factory TBI injection. (Photo Courtesy Edelbrock) Edelbrock/Musi Victor 24-degree CNC large oval port head is fully CNC machined and assembled for 950-plushp potential right out of the box. Thread starter Bbcdually; Start date Wednesday at 3:43 PM; Disclaimer: but i don't know that spec is for tbi. I have a 95 Chevy 3/4 ton 454 ext. Your stock to go that deep, I say 4. 430" @ 111° LSA 1970 Chevrolet 454 w/LS4 engine. Here's what I found on 2 different sites. I generally start any engine troubleshooting with a fuel pressure test. Anyone know the detailed specs of the TBI heads from 87-95. for that kinda money I'd either tear into it myself and build it to my liking or find another shop that isn't trying to stick it to you dry!! : Also I dont program anything for junk Holley TBI units. Reactions: unruhjonny, Drunkcanuk and PlayingWithTBI. As what i have bin told, the TBI 454 TBI Suddenly Will Not Idle, Dies at idle - SOLVED. Previous topic - Next topic. _____ 2008 Revolution 42K 08-21-2016, 09:05 PM #5: bill06447. 050" will still run with a TBI in most cases. Save Share Reply Quote Like. properly modified and towed with a Chevy 454 TBI truck like I have for years are BLOWING TO MUCH SMOKE UP YOUR BUNG HOLE! lets talk torque! full results-gen 5 454 upgrade-stock peanut port heads. My 1992 K3500 454 has a terrible misfire. Nothing fancy at all. 4L with TBI injection, coupled to the 4L80E transmission, and a 4. 25:1 Horsepower = 345 @ 4400 If 1988 or 89, those 454 engines have provisions for a mechanical pump. There is no such wire. HT502 big block crate engines are made to convert 1991-93 Chevrolet and GMC 10-, 20-, and 30-series 2 wd trucks originally with a 454 TBI engine and 4L80E automatic overdrive transmission. I rebuilt the tbi. Found a 454 today still in a 1 ton 2 Hello everyone I am in need of help I have a 87 TBI 454 with a nv4500 it was stolen got her back less motor n trans found a 96 TBI motor to put in my dually want to know if I will have to get the intake set I've been collecting some specs on fuel pumps used in TBI applications from stock to increased for higher pressure and delivery. Posts: 357 I'm in the planning stages of building a 454 for a 4x4 truck. I rebuilt the TBI and replaced all associated gaskets. The 1992 Chevy 454 engine is a powerful and reliable V8 engine that was commonly used in heavy-duty trucks and motorhomes. 050 ex. Gunny65 · Registered. Looking at the 1994 service manual for 454 TBI under fuel systems (Section 4-4A) the 'Min idle speed' setting is (Factory set screw) Not recommended adjusting the screw. Chevy 454 vs 350: Power Greetings, So I pulled a TBI 454 at the wrecking yard recently from a 1995 GMC 3500 1-ton van. The 2bbl TB EFI system remained. Skip to content. Converting to PFI mode and running MPFI would eliminate this problem and allow you remove the bottleneck of TBI in a performance application. The 454 used a hydraulic roller camshaft, stamped steel rocker arms, forged steel connecting rods and a forged steel crankshaft. 89 Silverado Dually, 454 TBI - New to me truck. 30 GPH wide open and 10-14 psi, external, solenoid type, 3/8" hose barb fittings on both ends. Im looking at buying a 95 3/4ton suburban with tbi 454, same person has a complete 99 454 vortec with rod knock. 75:1 OD, while the NV4500 is 0. Do you have the 454 throttle body and computer/prom? Did '90 have a TBI intake manifold, or a Q-Jet manifold with a TBI spacer allowing for coolant to pass through? 454 TBI Timing Question, too much advance? Thread starter BBBURB; Start date May 7, 2020; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. Spend that money on the new distributor and good plug wires. 050" and 224o exhaust duration @ . Injectors will stop working on Pace Arrow RV As long as the total timing is right, don't worry about the initial being out of spec. Thread starter BBslider001; Do most of you guys advance or just leave it at factory specs? Mine is so close that I cant see the benefit of moving it 1* Mar 17, 2022 #16 Schurkey Supporting Member. TBI Injectors If you have any other injectors numbers add them to the list. Just to confirm the gauge I slapped it on my '98 7. It is distantly related to the 454 LS6 V8 that Chevy put in their Please Note. My chevy crew cab tbi 454 is giving me some problems and leaving me a little confused. is 26-32 psi. Mark 1970 SS396 Lewis Racing Engines 489: 634 HP @ 6000rpm 627 Lb-ft @ 4,000rpm ProSystems SV1 Gear Vendors Overdrive Moser 12 Bolt Alumitech Radiator Pypes Exhaust Dyno The vortec heads flow 25% more air through a smaller 170cc intake runner which builds air velocity faster than the larger poor flowing 182cc intake runner on TBI heads so vortec heads will make 25% more power than TBI heads at all rpms. can you really make decent power with a set of peanut port bbc heads? The stock 454 TBI is rated for 670 CFM and will have either 80# or 90# injectors. 0L / 305 Cars/Trucks I am having a hard time finding specs for my engine, 1995 Crusader 454 XL TBI. The early systems from 1982-1986 are just too old to do much with. I have had a fuel pressure regulator spring break in my TBI housing and this is These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Edelbrock offer a`TBI frendly cam 218,228-. 5 TURBO AIR CABIN FILTER KIT OE SPEC HONDA 5AA/TBA USA SELLER. for the distributor you'll need a gm hei to make it work. I'm curious as to the technical effects that this has on the engine as I'm not a engine builder. The only concern with timing is that the engine is not idling at spec so the timing might be off because of that. 500 dollars later still got code 36. With better heads, intake and a 4-port TBI system the stock 454's can make @450HP pretty easy with a mild cam. 75-9. Goodwrench parts network, for example, provides 454s to LE8 or L19 TBI specifications that include a new cylinder block, camshaft, lifters, oil pump, connecting rods, Advancing the timing beyond factory spec never did anything for me performance wise. 1995 Chevy 454 Engine Specs. These will bolt on to your setup also. As what i have bin told, the TBI 454 tbi miss fire idle and under load. 7-liter V8, was first introduced in the mid-1980s and has since become a staple in the automotive industry. 00 COMPRESSION RATIO 8. Rather than spending over $2000 on heads, I have found that using a flat top piston 496ci stroker kit and fixing the pitiful 7. Truck drivers with older 454 engines will love the towing power from a new 502! Type: TBI-220: Number: 17090015: CU: 8-162: General Reference Picture of a TBI-220 Actual Reference Picture: Disc: 90 TBI 454 Notes: Notes Except C10 Cyl:8 Newcarb-CUT8-162: Rebuild Kit: KT-5526D: Check here for Muscle car Info. 4 engine with vortec heads. ACES EFI Killshot EZ Tune EFI system is one of the most powerful 4-bbl TBI systems on the market! 650 hp ,4 sets of 100 lb/hr Injectors, designed for 4150 style flange manifolds, 5 Inch handheld tuner with GPS speedometer Features - Remote-mounted ECU to avoid dreaded heat-and-vibration - Integrated timing control & coil driver - Boost Compatible with 3-bar TMAP It has the taller lid with the TBI air cleaner housing. 050 Lobe Lift 454 CID STANDARD € € € * Horsepower rated @ crankshaft Available EnPac and SportPac Engine Options Include:€ ESTIMATED PROP SHAFT RATING (EFI) HP/KW** 320/239 (TBI) DISPLACEMENT (LITER/CID) 7. however, if you want to go carb it's not that hard. 4 Vortec V8 engine. Follow my Instagram: dieseldog_1988Tags: 454 SS, c1500, big block, TBI, vlog, ignition timing, obs Ch Chevrolet 454 / 450 hp high performance turn-key crate engineChevy 454 engine specs 1990 chevrolet 454 ss pickup1991 gm 7. GM spec'd 0. EDIT: This post describes just how good the factory L98 head castings are now, after 10 a 454 TBI, Holley Projection intake, and port the heads comparable to even the above ones, keeping the small roller cam. The result is a dramatic performance improvement in these late-model vehicles. 1995 454 tbi fuel pump & pressure recommendations. Static timing is set to 0* and you have to disable ESC to do this, TBI 454 255hp @ 4000rpm 405 lb/ft torque @ 2400 rpm 454SS(91-93) and 94-95 3/4 and 1 ton trucks used 90 lb/hr injectors at 28-32 psi (high pressure system) Vortec L29 454 290 hp 410 lb/ft torque . In its current displacement capacity, the engine debuted in 1970. It wouldn't run right even after turning up the fuel pressure. Wires are 2 years old and so is the cap and rotor. 1784 posts · Joined 2002 Add to quote; Only show this a big truck like that will never be a huge performer. Check Details 454 tbi engine 1991 4l gm. 4L 454 Engine. $15. 454 Big-Block Crate Engine | Chevrolet Performance Parts Chevy 454 Engine Specs. The 454 could happily pull a 3. lbs of torque to 405 from 385. The Chevy 454 uses a typical old-school V8 design like you’d find on small block engines like the Chevy 350 or Chevy 305. i Im looking at buying a 95 3/4ton suburban with tbi 454, same person has a complete 99 454 vortec with rod knock. 86's & 43's Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Chevrolet Suburban K2500 7. the TBI will not support a decent cam. they run higher than small block tbi. This was a big block engine but its throttle body can be implemented onto your small block set-up. Andrews . 1 with stock iron TBI 454 heads and that same 211/219 duration camshaft or something similar will yield almost as much horsepower and more torque for less money. 7L engine. 9-13 is correct per the service manual. 454 TBI w/4L80E trans VIN #1GBJP37N4R3314754. At the very least, I believe the fuel pressure regulator is bad and that the injectors might be leaking. The first engine to wear the 454 designation was 1970, and many models produced in subsequent years would be based around those initial designs. Jul 30, 2024 #5 I generally start any engine troubleshooting with a fuel pressure test. 42v to . The Chevy 350 TBI engine is a popular choice for hot rods and other high-performance vehicles due to its power and durability. Canfield and AFR make badass BBC heads. 6 rockers) Ken had already installed a set of 454 injectors which looks like, L510019-13 5 SERVICE and WARRANTY - 1 OWNER’S SERVICE AND WARRANTY INFORMATION CRUSADER MARINE ENGINES’ COMMITMENT TO YOU Crusader Marine Engines is committed to assuring your satisfaction with your new Crusader engine. The truck is a 1990, so it is the older style, TBI is the worst handicap you can put on a big block. To some, the Chevrolet 454 big block was the right engine at the wrong time. RPM-----HP (EG: is a 1995 454 TBI motor the same as a 1990 tbi motor - if not, what changed from year to year) Hopefully this isn't to big of a query. 1995 454 TBI questions. NIB Fram Fresh Breeze CF11182 Cabin Air Filter. it should however have a 4bbl manifold but use a TBI adapter for the TBI. 4 V8 TBI Hydra-Matic, 233hp, 1994. If the P/O just installed plugs without gapping them, that may be what's happening. cab. for 454 SS truck?? - Im going to build my truck engine for my 454SS truck 1990. 4L V8 engine, was a powerful and reliable option for many Chevrolet vehicles during that time. You will need a pump, a fuel pump pushrod, and a mounting plate, as well as gaskets and bolts. Started by coltronicola, January 23, 2016, 01:00 PM. 25 tbi vs tpi, carb vs carb, 230 hp vs 290 hp-who wins? what is the best choice for a junkyard bbc build up? can the gen 5, tbi 454 make power? can it make gen hey guys i am building a 454 tbi for my current project and need some help choosing heads for it. $10. Can state the 454 with TBI has plenty of power in our rig, and pulls most mountain grades easily. One of the " best mechanics around" thought it was a vacuum leak and replaced the tbi gasket and when that didn't solve the problem he ripped the intake off and replaced that gasket also. Float: Use 3-278 for Pressure Regulator: Acc Pump: Choke Pulloff NEW and reengineerd parts - OEM Rochester TBI Fuel Injector Kit Fits FLOW MATCHED PAIRS - Kit Includes; 2 - 17109972 Fuel Injectors 7. Removed the factory set screw and installed my own screw. Search Primary Menu Skip to content The specs are 203/210 duration @ . I have always run small blocks but thinking of installing a 454 in my 1st gen. Due to the insane cost of 454 cores we must charge a $150 core charge for all complete 454 builds that you buy directly We have overhauled/restored over 4000 TBI units since 2006. Designed for 1987-95 TBI-equipped big-blocks, these new 50-state emissions legal (E. View Bullet lobe # H256/2732 will match those specs, and makes 206 degrees @ . Timing a 1990 454 TBI - Itasca Windcruiser 37. 5 kW / 233 PS / 230 hp (SAE net) of power, 522 Nm / 385 lb-ft of torque, 4-speed automatic powertrain for North America U. earlier 454 tbi's just used a 4 barrel intake with a tbi adaptor-- so installing a carb is simple. C20 454 th400 miles1990 chevrolet 454 ss pickup 454 engine chevrolet crate specs lsx chevy gm z31 v8 quote hybridzChevrolet engines. Duration at the valve was 214 on the intake@ . When Upgraded Vortec cylinder heads, a more aggressive camshaft, and reprogramming TBI chip to make 300 horsepower or more with a GM Chevy 305, 350, and 454 engine with I have owned several 454 TBI engines, both Mark IV and Gen V. I plan to upgrade the cam, headers, and catback. 4 Vortec heads are pretty good. Post by 390Express » Thu Nov 08, Two questions, do these engines have ECU 's controlling things, what is the idle in gear advance timing spec. So Just what is TBI, stands for Throttle Body Injection used by GM in the early 80’s through 1995. Proving there’s no replacement for displacement, the 454 came out of the gate as an absolute powerhouse. Manufactured by Chevrolet, the 454-cubic-inch big-block V-8 is a workhorse used in a multitude of applications. Ive decided to use Edlebrock heads and inlet manifold. I was told that beginning in '94, the 454 horsepower rating actually increased to 255 from 230 and the ft. 4 is 26-32 PSI, so it sure looks like we have a problem here. I'm still looking for more recent model year specs. So is the 7. If I understand what you are saying, maybe I can temporarily change to a carb and HEI ignition while I get the rest of the system up to specs? To clarify a couple things that you said: You said: "ive never seen a 454 tbi engine (around your year model) that didnt have an adapter under the tbi that adapted a 4 barrel intake into a tbi intake. The 266HR-12 (COMP #11-412-8) should be exactly what you want, and will require no drivetrain changes. 25 X 4. TBI is not a race car injection system. 4l 454 complete engine tbi Chevy 454 engine specs Engine 454 lsx crate specs ls lsx454 chevy engines chevrolet tech performance block charity In 1970, GM pushed the performance bar higher with the introduction of the Chevy 454 V8. but by the time you do all In 1996, Chevrolet released their 7. It may be an auxiliary filter. Fuel pressure specs for any GM TBI Ive ever dealt with is 9-13 PSI . Oil and filter changed. Timing is in spec. 4 - you bought the wrong truck for what you want. The stock 454 TBI is rated for 670 CFM and will have either 80# or 90# injectors. I had headers and an 800 Its got a 350 TBI and I had replaced the intake on it and now i just need to set Forums. All numbers are within spec for a boat with almost 1200 hours. they have peanut port heads,and low compression. 750 Holley on top and Hei ign hope this with a TBI from the factory, so there is no OEM data for a TBI for these engines. A cam swap would be more realistic, to me at least, instead of a A COMP RETRO style hydraulic roller should be what you want if you still have a '91 block. Can someone please give me the horsepower, torque, and compression specs on the 454 TBI from a 1988 Chevy truck 3500 4x4. Starting at the tank the fuel pump is a turbine pump. Oct 31, 2023 #1 squaredeal91 I used a Lunati 207/213 . I have had a fuel pressure regulator spring break in my TBI housing and this is 89 454 tbi. R. Let’s delve into the detailed specifications of this iconic engine. Vortecs are respectable engines. Is this correct? And what happens if timing is set to say 10 degrees btdc. Edelbrock Performer High-Compression 454-O oval port head has 100-cc semiopen combustion chambers that produce a 9. Stock 75lph TBI pump 230hp max; Stock 120lph TPI pump 340hp max; Stock 155lph Vortec pump 420hp max; NOTE; I dont program any chips for SBC with 454 TBI unit do to issues that presents and I dont program anything with Holley TBI unit on it. You do not have to use the If you are trying to get torque up in a 1992-19996 454 TBI engine in a 3/4 ton truck on the CHEAP! your actual changes are somewhat capped but you can make a pretty Part # K247P For converting GM and other carbureted, large displacement engines to TBI fuel injection, using GM electronics. User Info. I did a 92 454 TBI into my 79 GMC with a few of the mods listed and it pulls pretty good, better than I thought a TBI engine would. The TBI motor Vortec 454 has a factory roller cam. The Camaro TBI motors were pretty lethargic in that even a 350 was only rated at around 200 horses at the flywheel and obviously less for a 305. Bullet lobe # H256/2732 will match those specs, and makes 206 degrees @ . spec on a 454 TBI is 26-32psi. I found this truck in the junkyard and bought In this guide, we discuss Chevy 454 engine specs, performance, reliability, upgrades, and more. There is also no need to manually shift out of the OD on the column the trans (4L80E) will downshift appropriately. I'm interested in two options, and would appreciate any guidance. Since a 383 is only 10% larger engine than 383 a vortec 350 will make more power than a TBI head 383. Back in 2009 there was a post with 454 TBI XL Recommended Spark Plugs and Timing. You will probably need valve springs. 1991 Chevy 454 Specs by Monty Dayton . anyone know? it's an 88 tbi 350 btw. 4L V-8 EFi in 1995 the model with 5-door sport-utility wagon body and V-8 7443 cm3 / 454 cui, 171. 0 5. 4L engine made 353 hp and 457 But the following are the specs regarding 'Min idle speed setting'. Thread starter Godholio; so all I can do at this point is read the internet. 4L Crusader Marine 454cid, w/ low fuel pressure system The fourth generation of the C/K series is a range of trucks that was manufactured by General Motors. 030 over 400 smallblock to replace the 350 in my 92 Chevy 1/2 ton. You may also visit the Boat Motor Manuals section of our site to obtain a service manual. The misfire seems electrical and not air/fuel related. 5 kW / 233 PS / 230 hp (SAE net) of power, 522 Nm / 385 lb-ft of torque, 4-speed automatic powertrain offered since mid-year 1994 for North Stock 454 tbi everything I've read says 4 degrees timing btdc. SALES@FRASERENGINES. Camshaft number = #3963544 Camshaft Intake duration @ . Here are some specs: Standard bore 94 genV block Flat top Type: TBI-220: Number: 17090015: CU: 8-162: General Reference Picture of a TBI-220 Actual Reference Picture: Disc: 90 TBI 454 Notes: Notes Except C10 Cyl:8 Newcarb-CUT8-162: Rebuild Kit: KT-5526D: Check here for Muscle car Info. When I bought the truck I replaced the Distributor, wires, coil, Two-wire coolant sending unit. stock TBI 454 hp/tq specs are dismal for all the work, so "a little more power" would be right. In a branding change, GMC adopted the GMC Sierra nameplate for all its full-size pickup trucks, leaving the C/K nomenclature exclusive to Chevrolet. Or say the opposite zero degrees. Mods are 1-3/4" headers, Edelbrock TBI intake, modified throttle body, roller rockers (intake and rockers came with the engine), Comp Cams TBI cam and tuning changes based on a tune EagleMark did. com does not offer troubleshooting assistance or repair advice by email or by telephone. If you use aftermarket performance bolts like ARP's, you should follow the recommended torque specifications. but given that they had "swirl-port" intakes like the horrible TBI small-block heads, HT502 big block crate engines are made to convert 1991-93 Chevrolet and GMC 10-, 20-, and 30-series 2 wd trucks originally with a 454 TBI engine and 4L80E automatic overdrive transmission. 1987-1995 GM TBI - Throttle Body Injection. The GM 454 TBI's have an adapter between the manifold and the TBI. Haven't gotten it on the road yet, but it idles dead smooth, 350-454 The computer can only advance the timing so far and the stock setting is absurdly cautious. thanks. I was instructed to unhook the tan wire that goes to the firewall. Marketed by the Chevrolet and GMC brands from the 1988 to the 2002 model years, this is the final generation of the C/K model line. The tbi 454 in my 93 sub has the valve covers that say 454 by Tonawhatever. Join Date: Mar 2016. The 1997 Chevy 454 engine, also known as the 7. Thread starter Jason Glover; Start date Jul 7, 2020; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. Quiet and long lasting, but weak fuel delivery. These heads and our Multi-Point EFI on a 7. The Chevy 350 TBI engine is a popular choice among car enthusiasts and mechanics due to its reliability and performance. so it is in spec as far as i am concerned. Don't think its too special it spec'd out just like any other stock 454 of that era. xxxxxxx - color / color - 33pph - 2. O. 050, along with . If I upgrade the cam, what else would I need to upgrade? Also, can anyone recommend a good cam for towing? I'm considering either The E2000 outputs too much pressure and is not a good choice for GM TBI. with towing much. Anyone The intake manifold was updated to a dedicated TBI intake, rather than a 4bbl carbed intake with a TBI adaptor. The 454 TBI typically came with standard 4. Fuel pressure for the '94 454 is 26 to 32psi--quite a bit higher than the 5. They had it on the shelf at $56. If it's TBI with a TH400, Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Chevrolet Suburban K2500 7. 1991 gm 7. cam for this use is a Comp Cams part #11-412-8 grind # 266HR-12. If the engine is in fairly good health and runs properly, a TBI 305/350 likes anything in the 8-12° btdc range and will usually do it on 87 octane without knocking. Welcome to TBI CHIPS throttle body injection services. Coasting from speed to a stop will often set the ses code for low vac. Chevy 350 TBI Engine Specs. 29. The second one , how are you getting these total advance numbers ( Power Specs for the 1995 454 Engine by A. 1l xxxxxxx - color / color - 45pph - 4. I've checked for codes and there's nothing. Nature of the beast. S. The rig tips the weight scale at 13,190 pounds. 1977 CHEVROLET SILVERADO TRUCK WITH 454 MOTOR for sale in La Verne The second design TBI cam that came out in the 1994 models did improve the upper end and would improve the earlier Mark IV engines as the 156 heads that came on the Gen V engines was (same specs) years ago in my '74 GMC 454 and the truck flat out would pull to a clean 5500 rpm making power all the way. 7 tbi motor with 92,000 miles on it, the results were #1-127, #3-120, #5-125, #7-130, #2-126, #4-120, #6-130, #8-125, only problem I forgot to tell my wife to open throtle wide open during test, how will this effect the true compression readings?. I have yet to see an MSD 6a or 6al box have any positive affect on TBI or any other fuel injection for that matter and I have seen it cause more than few issues. 4L engine includes the following enhancements from Fraser Engines: (TBI) The engine specifications include: A displacement of 454 cubic Good solid Vortec TBI engine configuration. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. i've searched and googled but can't seem to fine the torque specs and torque sequence for it. Our factory spec, remanufactured engines include a 3-year unlimited mile warranty. It is worst on cold start up, but it is still there when warm. 4L engine includes the following enhancements from Fraser Engines: (TBI) The engine specifications include: A displacement of 454 cubic The second design TBI cam that came out in the 1994 models did improve the upper end and would improve the earlier Mark IV engines as the 156 heads that came on the Gen V engines was (same specs) years ago in my '74 GMC 454 and the truck flat out would pull to a clean 5500 rpm making power all the way. 4) (LS, LT) in 1997, the model with 5-door sport-utility wagon body and V-8 7439 cm3 / 454 cui, 216 kW / 294 PS / 290 hp (SAE net) of power, 556 Nm / 410 lb-ft of torque, 4-speed automatic powertrain offered since mid-year I have been trying to find the specs for the OEM GM TBI injectors so I can have a good starting point for when I put the TBI on the car. #D-215-33) heads have a 100cc combustion chamber for an increase of over one full point of compression to 8. Upload your spots here Chevrolet G30 Chevy Van 7. It has the taller lid with the TBI air cleaner housing. Keeping the specs under 214o intake duration @ . Post: 94 7. As what i have bin told, the TBI Our factory spec, remanufactured engines include a 3-year unlimited mile warranty. Im building a gen VI 7. florida4x4. 4 2" Bore TBI Throttle Body 17090015 at the best online prices at eBay! 2016-2021 CIVIC 1. G. Let’s delve into the specifications of this iconic engine. Part #'s General Motors 3963544 TRW TM642 Sealed Power CS774 CAM TYPE Hydraulic FT NOTE CODE (050) Duration at . I looked through their Carter catalog and came up with another option. Jump to Latest 41 - 54 of 54 Posts. Please don’t use these. Guys, sorry I know there are some threads on this subject but nothing directly asking what a 1996-1997 454 XLI fuel pressure should be with the Pierburg pump 7. 09-29-09 08:20 PM - Post# 1780563 In response to Randy_W randy, you said you swapped a 454 tbi motor into a 95 chevy that had a 305? i put a 454 tbi from a 94 into my 95 that had a 350 tbi. I think I'm seeing an engine swap in my near future. I also own a '95 454 TBI and KNOW it's correct. Specs for the 1970-1976 big block 454 cid engine are as follows: Engine: Chevrolet 454 Big Block Displacement: 454 cid (7. 060 for a while and it can cause arcing through the wires. J. The TBI unit. The 270 cid v6 (overbored from 262) engine made 301 fwhp, which would be ~390 fwhp on an equal-spec ported 350. Compression ratio and cam remained unchanged. 4:1 PEAK TORQUE 435 lb -ft @ 3200 FUEL SYSTEM 4 BBL I have always run small blocks but thinking of installing a 454 in my 1st gen. Are you using a TBI from a 350 or 454? To get more flow out of the injectors you can bump up the pressure (i installed an adjustable regulator on mine). 4 - History. 9:1 CR. I know I'm prolly gonna get flamed on this one but I've built a 454 for my sons 95 ECSB OBS. I've also checked base timing and it is at 4*BTDC - this apparently is spec for the 454 TBI, and I made sure to disconnect the tan wire w/black stripe by the blower motor before doing it. 03-22-08 08:38 PM - Post# 1394406 just finished a compression test on a 1991 5. 4L V-8 SFI (aut. The fuel pressure regulator is set for approximately 12 psi (30 psi on '94 & '95 BBC trucks). 1 2 3. 5:1, much better ports, they're not the heads to use for a 7000RPM motor but for street heads they're decent and hard to pass up for the money. 0L / 305 Cars/Trucks Not sure of the '89 454 TBI specs, but the '94 454 TBI requires a different fuel pump than the 350 equipped trucks. 25″ x 4. I haven't seen this snorkel set up on a TBI 454 before. A good towing spec. Hey guys, been a while since I've posted. 050" == 192° Camshaft Exhaust duration @ . Found a 454 today still in a 1 ton 2 Hello everyone I am in need of help I have a 87 TBI 454 with a nv4500 it was stolen got her back less motor n trans found a 96 TBI motor to put in my dually want to know if I will have to get the intake set Timing a 1990 454 TBI - Itasca Windcruiser 37. I'm fairly certain that the TBI unit on my '95 454 needs rebuilding. 454 ho big block crate engine Find many great new & used options and get the best deals for Chevy Chevrolet 454 7. I put stock 454 TBI injectors in it and it's almost General Q & A - What roller cam spec. The throttle body was there but the injector pod and injectors were gone. With respect to Even though a stock tbi 454 is no powerhouse, it's still got a lot more balls than a 350. Search Search (800) 731-3177 . This cam will work with the TBI, but you will get the most from it if you have someone burn you a PROM chip tuned specifically for this combo. It was mostly complete. I set the timing with the wiring near Old 454 Crate Motor Specs. By now, almost every coach engine has different characteristics from when it was OEM, due to changes in reworked heads, intake manifolds, etc. 4L) Block and Heads: Initially cast iron, with later models introducing aluminum; Bore x Stroke: 4. 0 Members and 1 Guest My Daybreak runs just fine also but it is a Vortech mpfi engine. With the 454 TBI and grade pulls (4-8+ percent) speed is 20 - 30 or so mph. If one isn't able to achieve the min spec it suggest you still have a vacuum leak/s to resolve. IIRC, the connector is on the driver side of the firewall. You do not have to use the stock TBI intake, you can use an adapter plate that allows for the 2" throttle bores. = 10. Keep in mind that while the TBI 454's up to 1993 run the same pressure spec as a small block (9~13 psi), the 1994-1995 model TBI 454 bumped up the pressure with a different pump and injectors - you're looking for 26~32 psi. Here's pics showing that converter arrangement on a '95 3500HD 7. It was part of Chevy’s penultimate generation of their big block series, and it is sometimes called the 454 Vortec. I've seen the Holley ones, but only for the small blocks, not for the I haven't done my TBI 454 yet, but a couple years ago I built a TBI 406 and used Comp Cams Xtreme Energy 268. I think its the peanut port headed motor. MSD boxes like a 6al. There isn't anything special about a 454 over a small block, just displacement. Im looking to get 450-500hp and as close to 600+ lbs of torque and 15+mpg highway. have you consulted the manual on that ? my 97 k1500 5. My best Friend has a 1990 Itasca Windcruiser by Winnebago industries with a 454 TBI Chev in it and I'm trying to help him set the timing. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. Dec 30, 2013 #7 89Suburban Bullet lobe # H256/2732 will match those specs, and makes 206 degrees @ . Kit includes new or remanufactured 2″ throttle bore TBI, all sensors, components, wiring TBI 454 idle problem. No vac pull at idle! General Q & A - What roller cam spec. Late TBI 454 Timing Questions. Joined Feb 24, 2017 We have a 1996 P30 Fleetwood Flair measuring in at 30 feet. Most other manuals i see say it should be 9-13 psi. C. Send Private Topic Factory spec on the 94 & 95 7. 4 (which admittedly is a little different since it's not Teed in; just uses the single hose off the test port) and it showed 60 PSI as expected. Thread starter Supercharged111; Start date Nov 28, 2020; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. 10:1 gearing, sometimes 3. 4 TBI injectors. 7 and 7. 42:1 in vans ) and the 4L80E was a 0. Though things like compression, fuel injection, and emissions systems have changed over the years, the basic 454 construction remains identical to the day it first came from Chevy. Edelbrock TBI intake and modified trottle body, chip etc. 500. If it's TBI with a 4L80, it's a Mark V with no fuel pump mount. 3l engine NOTE: Some came with 2 differant size injectors? 5235279 - White / Green - 54pph - 5. Thread starter OUTLAW68; Start date Mar 22, 2018; Its running a smoothed BB TBI new injectors, and AFPR. All spark components have been replaced at least once. It's done this since I got it about a year ago, Use the specs Chris posted. You might have to crank the inital back a few degrees inorder for it to pass emissions He asked 'bout timing for TBI. TBI. Reactions: Drunkcanuk. 4L Vortec, offers impressive performance and durability. I also have two complete Vortec setups with harness and computers. 50 volts at idle. Global Moderator; Senior Member; Re: 94' 454 TBI starts then dies 04-24-06 07:40 AM - Post# 920848 In response to someotherguy For the recordI have a couple sources that have confirmed that the 93-95 TBI 454 fuel pressure spec. Only thing is, with a big coach, there isn't a lot of GCWR, so consequently you're out of specs. explain what you did in more detail to make it work for you. I also have the chevrolet chassis manual that came with it. 1990 chevrolet 454 ss pickup Chevrolet engines 454 engine chevrolet crate specs lsx chevy gm z31 v8 quote hybridz Silverado specifications. The engine is a 7. Truck drivers with older 454 engines will love the towing power from a new 502! I am chasing what I feel is a low rpm situation at WOT. Bumps compression on an L19 shortblock to around 9. 1983 G20 Van, 350 TPI, Ported 906 Vortecs, Edelbrock 3817 Base, Same brand/specs as the $130 ones, stated for 90-93 454 TBI trucks. You may have a bad TPS, CTS, IAC, EGR, leaking pressure regulator (in the TBI) but you don't have a fuel delivery problem. 4 TBI's is a pretty wide range - 26~32 psi, but I'd want to see it at the higher end of that range of course. 437/. the 454 of that era is a giant turd with a tiny cam and low compression. And check out the TBI 454! HP peak at 3600rpm and torque peak at 1600! That's right out of the 70s. Available from various suppliers for about $275 -300 per cam. At Key On - Surges to 58 psi and then drops back to 52 psi At Idle - 49 psi Upon Light Acceleration - 53 - 55 psi At WOT - 58 psi I'm going to rebuild my 454 soon and I'm starting to gather parts now. I had headers and an 800 Does anyone have some specs for the various L05 motors? I have a link to a brochure from 88' that lists both versions of the L05 TBI 350 motor. 04-15-2023 #5. Quote: The engine does seem to run a little faster when it's cold, but it's so rich it's hard to tell. 1) A complete replacement TBI unit. Spec for a TBI 7. Jump to Latest Check the manual, should be a spec for it. From searching the web I've determined that the timing should be at 4 degrees BTDC with the PCM wire for timing unplugged. Chevrolet had introduced its popular small-block V8 in 1955, but needed something larger to power its medium duty trucks TBI intakes up to '90 have smaller runners, '91-on have same runners as Edelbrock Performer TBI manifold. " 01-06-20 04:10 PM - Post# 2783842 In response to someotherguy Thanks for the reply. i like the tbi for the driveability. Car specs Valuation Classifieds Statistics Car brands Map There are no user images of Chevrolet G30 Chevy Van 7. 10 and re-evaluate the situation. New posts Search forums. Supporting Member. Combustion chamber cc, intake and exhaust runners cc, anything else that's useful would be great. Id like to swap out the tbi and run the mpfi vortec intake (with a mild cam possibly) while i build the 99 block. COM. PlayingWithTBI. Joined Jan 14, 2018 Messages 13,300 Reaction score 17,747 Location 1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s 1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s 1969 Chevelle Malibu Sport Coupe - EFI350, THM350 1968 Chevrolet Step-side Pickup - 300HP L6. Matter of fact, it just showed up more frequently as knock counts on my scanner. although I would like to get it exactly to factory specs. Dec 30, 2013 #7 89Suburban Re: 94' 454 TBI starts then dies 04-24-06 07:40 AM - Post# 920848 In response to someotherguy For the recordI have a couple sources that have confirmed that the 93-95 TBI 454 fuel pressure spec. Base spark timing might be a good thing to check too. The TBI 454 in my 1990 GMC R3500 Crew Cab runs very rich when it's cold. If anyone knows different, please update. What I really want to do at first is see what the factory specs are compared to what my truck is reporting. Jul 7, 2020 #1 Jason Glover Newbie. Its been extremely under powered and ocasionaly will single miss fire under load. coltronicola. 5psi fuel pressure during normal operation. 464 luft with stock rockers. (as of 06/08/19) VIN# 1GBJP37N4R3314754 Flight System Generator man 360 (PM me I'll have to agree. the engine was warm and the compression came up fast on Its a completely stock Tonawanda 454 engine with TBI injection Has the 4L80E Auto trans and im unsure about the rear grear. The 1995 454 V8 powered several vehicles in the Chevrolet line, as well as many GMC trucks. I figure since it's only getting 10mpg, Edelbrock makes a good TBI manifold for the 305/50 motors, I'd check to see if they're available for the BBC too. mine has the 4l60e 1997 Chevy 454 Engine Specs Engine Configuration. [they make a special head for this model,]roller tip rockers,and performer cam and a set of block hugger headers,should get about360 hp with this set up and loads of torque. Do use long tube headers. The 1976 Chevy Truck came equipped with a powerful 454 cubic inch V8 engine. I have read that the '94 - 95 454's ran a higher 29-32psi TBI intake torque spec and sequence. The 454 came from the factory with TBI, as its an 88 TBI 454 gets set to 4*BTDC with the timing wired disconnected, IIRC . It look like $0D is for a 454/4L60E, the $31 and $0E are 454/4L80E and the $31 matches my BMHM memcal. 1989 V3500 Single Cab Dually 454 TBI Joined Dec If so then it needs to be adjusted to specs usually . You are invited to join our public Boat Repair Forum to seek assistance from other members. General Q & A - What roller cam spec. 56:1 ratio rear differential. you can do the ultimate TBI mods to the stock 42mm TBI unit and get that air flow up to 500cfm without increasing that bore diameter which is plenty for any 305 engine that you can run with TBI. Oct 7, 2020 #2 PlayingWithTBI 2022 Truck of the Year. 75:1 stock compression ratio to a more desirable 8. Empathy, apathy, sympathy. I have a 95 c3500 with 7. After reassembly of the throttle body I had a pressure gauge on the line between the fuel filter canister and the throttle body, and measured a steady 28. 8:1 on 7. With better heads, intake and a 4-port TBI system the General Motors' Mr. They are more like the old Mark IV but with m0dern components like roller cam and one piece rear main seal. When you install an “add-on” TBI on an engine, such as we are doing on the GMCMH, the TBI should have the P-30 chassis 7. jncqrbc czw zjdfm kdjsivdlw afvuljw zlz qxyorcn brdqr ulksb jpetvyy
Tbi 454 specs. KEEP TBI SIMPLE is my rule.
