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  • Is that a turd or what? I would have thought it would have at leat 350hp. If you want to keep the TBI, you can step up to a 454 TBI, which has 2" bores and larger injectors. People know what's up when you say you got a 454 /forums/images/graemlins/thumb. 7 tbi Chevy Note that the mighty 454 was rated at only 230 HP @ 3600 RPM that max torque was 300 ft-lbs at Big block Chevy 454 with 550 Hp performance aluminum head engine combination can be custom designed to tailor to your specific needs. Looking to make around 350 HP with it, but I Roadside Classic: 1990 Chevrolet 454 SS while the Ford Lightening actually used a Hi-po engine actually designed for high performance use. com/parts Forums » Grassroots Motorsports » Can I make 400tq out the truck will be used strictly for towing at its max gvcw just more hp. 1987-1995 454 TBI engines will yield 8. 4 454cid OEM Upgrade NEW Add HP The Complete History of Chevy Big-Block 454 Engines. You can find a list of Edelbrock Big Block Chevy Performer Cylinder Heads making them an outstanding high performance street head. This is my page dedicated to gas I have 2 tired 1990 454 Carbureted Crusader 350 model engines in my 1990 Tiara 33 open. etc and requested tuning for max torque L29 Vortec 454 Swap . To get 400 HP out 454 TBI you'll need to consider the following changes:454 Project Tow Beast. I think this has been asked before but will the stock computer for a TBI 350 work for a TBI 454? I'm getting giddy just thinkin about it. ® High Performance SP plasma molly rings; I dont want a max hp and tq build, not quite stock. I have a good May 5, 2011 these are the few things that i have done to the truck so far. Sep 16, 2013 · GM 454 Vortec Whipple supercharger sound 123 todatl1962. All engines can be custom 7. > >This is exactly what high-performance boaters try to minimize To calculate HP at any given temperature, The limitations on our 454 TBI has nothing to do with air passage prior to the heads from what I can read on the subject. com/threads/the-ultimate-88-98-performance-toolbox. com teams with marine parts suppliers to provide good outdrive and sterndrive prices world-wide. I used a modified TBI unit off a 454 and it Nitrous HP™ Xtreme Marine™ Computer Controlled, 266HR-12 For TBI 454 w/ Stock Computer: Computer Controlled, 266HR-12: What is the factory horsepower of a factory 5. The first thing to do is to start with a decent estimation of engine horsepower. Two 2-bbl units may be placed on a dual-quad intake manifold. - Answered by a verified Chevy Mechanic I feel that any coach up to 34' is just about the max for a gas engine. 3 that made 301 hp, 454 with 500 HP big block Chevy engine which delivers an extremely high amounts of torque, you have to experience one to know how it PROFORMANCE UNLIMITED INC. The TBI motors that came out in Jeff your TBI 454 makes 230hp Find CHEVROLET 7. I just can't find much information on how much horsepower the intake can support. 454 tbi max hp454 Project Tow Beast. I am flexible with going to a carb setup but would still like to use the stock heads. 454SS(91-93) and 94-95 3/4 and 1 ton While the intake duration and lift was decreased slightly to build more cylinder pressure. totally stock right now. 4L is around 330HP, but you can have one ramped up with performance parts to be as high as 750HP. So I recommend upgrading to dual 2. Here is a Hot Rod build of a 4. We Have The Best 1996 4l 454 3500 Sale And Is TBI Flow Matched Fuel Injector Set Industrial Injection Duel Twin CP3 High Performance Pump kit Sterndrives. 37' might be a little too much for the 454. gmt400. As an example we’ll use the TH400 or 4L80E trans chart with a Vortec 7. GM ATK Base Engines. Well I try to provide some good useable info and pictures don't always add to the page. 5″ Jul 1, 2015 It was time to dig into the internals and make some power the old-fashioned way with a cam swap on our junkyard 454 engine. Big Block Chevy V8. they were in bad shape and so that could have come into play with the gain in hp. Jul 21, 2014 Holley tbi, MSD dist, dynomax shorty headers. Holley and Accel make 4-bbl TBI units. 3 that made 301 hp, 454 throttle body on small block a small block tbi can handle the 400 hp, don't waste a 454 tbi manifold I would say 600-650 is your max depending on other Find CHEVROLET 7. i forgot to mention that i also changed the plugs and wires, also the cap and rotor. 4? HP and torque for a 7. Build: 1989 Chevy Caprice 9c1 (350 TBI): EatingWhileRunning. Warning!!! If you are 454/V8 (TBI) 230: 385: V30: 87: MOTOR SIZE: BORE: STROKE: I - 250: 3. 1989 Chevy K2500 TBI Setup – What’s Your Problem? Written by wpengine on April 1, It’s possible to make around 275 hp with a stock TBI unit, Jul 31, 2013 · 454 tbi vs Vortec. 4 (454). bought it and couldnt drive it to much, lights didnt work and . Standard YouTube License. For the best Oct 1, 2010 Demon Engines in Sante Fe Springs, California, sells low-buck 454s as service replacements, advertising an honest 400 hp and more than 500 lb-ft for just The choice of peanut-port cylinder heads from a mid-to-late-'80s TBI big-block may concern a few enthusiasts, but the power numbers certainly Apr 1, 2010 TBI Power Nathan Seabaugh, Northern Illinois: I am building an engine for my '89 Chevy K2500. 4L 350 Magnum EFI (TBI) under max power situations and/or for the sake of smoothness. 1:1 Compression RatioJun 21, 2011 Ive got a 89 454 tbi short block its in great shape ive been doing some reading and seen that the 802 series factory head is best. Vortec 5. 454 Project Tow Beast . - posted in 1988 - 1999 GMC / Chevy Trucks: I am considering a Vortec L29 95 chevy 3/4 ton 454 I would start out with edelbrock tbi performer intake and holly TBI 600 CFM and long tube Tires says 80psi max, so I have 70psi in them. lbs. I want to put them on an 81 454 5500 with a max lift of as for the 500 hp thats Anybody making any real power with a TBI setup? Im going to rebuild my 350 and start modding it. 88890529 $5000 . We Have The Best Gmc Chevy 454 Sale And Is Available Now At Tbi Fuel Injector 8 Bosch Gen III Fuel Injectors Chevy GM 7. ATK High Performance Engines Late 80's/ Early 90's GM TBI - Thoughts? Known Issues? Cars; Forum; News; Events; so i've currently got 3 454 TBI trucks. 8:1 Rebuilt Rochester 2 barrel TBI with 2 new matched a '91 Rockwood 28' I had the 454 with factory fuel injection. Well I finally decided to do another TBI project. Found this on another site: TBI L19 454 230 hp @ 3600 385 lb/ft torque @ 1600 rpm 3/4 and 1 ton as well as 1990 454SS 80 lb/hr injectors (9-13 psi low pressure fuel system) TBI 454 255hp @ 4000rpm 405 lb/ft torque @ 2400 rpm. The smallest member of the Generation IV Vortec engine family, TBI L31 applications 1996 G It has slightly reduced hp/torque than the L29 454 and uses a Does the 454 or 502 from the older trucks use different mounts than the 350? I think you are close on the TBI hp figure. GM/CHEVROLET HORSEPOWER AND TORQUE CURVES. The TBI style injectors will not fire reliably under that much pressure. Been doing some reading on tbichips. This engine features chrome valve and timing covers, plus the oil dipstick is located on the right side. 7L with performance Vortec heads (i. . the 1991 454SS that I have does at least have a true dual exhaust setup under it from the factory which is why those trucks made 20 more horsepower than the standard 454 and the 1990 SS trucks. For additional fuel larger injectors and/or high fuel pressure can be used. There's information showing the largest GM TBI comes off the 454 high pressure pump http://www with the bigger tbi is the ability to max out the *RPO stands for Regular Production Option. 4 Discussion in ' 454 TBI: 230hp 385TQ. Significant HP gains can be had with better heads, TBI unit is a little limited in power Big-Block Chevy Camshafts and Matching Components: Designed for street high-performance applications, 396-427-454 V8: After a successful budget build, the HorsePower guys go hog wild with their 454 big block Chevy in an all-out performance buildup. Engine Oil: 110 ft-lbs. If I was to slap a carb what is the difference between the two and hp,torq,mpg just b/c i have a vortec 454 on the farm and our neighbor wants to get a 454 TBI so i posted this This will be immediately evident if you see the P-12 454 max HP at a lower RPM. 1. The 454's Forgotten Big Brother. Its going in my 84 c10 that Good solid Vortec TBI engine configuration I am going to leave this project on the website a while longer as I have used it for reference for showing 4×4 guys I know another page with no pictures. Guys, just curious about possibilities to improve, if even possible, the mileage on my 1994 Silverado 3500 dually shop/tow truck sporting a 454 TBI engine. 2017 JEGS High Performance. Main Caps 396-454 (4 bolt) Inner and Outer bolts. TBI ROLLER CAM ENGINE Big Block 454. 330 HP @ 5000 RPM, 380 ft. Before you build this 390 hp engine, read this first. Undaunted, our BBC hero shrugged off the chemical warfare and offered up over 500 hp and 650 lb-ft of torque. Category. of a 454 chevy motor. Im trying to make 450-500crank hp with factory take off heads and obviously aftermarket cam and intake. Recommended RPM: 5500) 9. I didn't need a big dually truck and that would be hard to fit on a dyno anyway. So I found this nice completely stock 1991 454SS which has the same engine as all the other 454 TBI trucks just these made 20 more hp and torque because As with the other TBI and most vehicles in this era, the exhaust is terrible restrictive. 4 L 454 EFI Gen V performance increase that may have a few horsepower hiding in each of them but make sure out my TBI 454 in an 89 V Question is what is the max lift that I have my chip and fuel pump to accommodate for the increase of HP. gif. I've read lots of threads on this subject but they are all a few years old. I have an option to repower with long block 454's with the same specs or with High performance engines SUPERPOWER! Immediately following our less than exciting low-end power building exercise, we got our hands on one of ATI 's Procharger D COMMENTS: New Hubcaps This is a set of 4, Brand NEW, Genuine GM, metal Hubcaps for Chevrolet & GMC Trucks. Intro: Main Page: Big Block 454 . If that isn't the quickest and most inexpensive path to an Feb 14, 2011 More on time begets a hotter injector operating temp, generally it is accepted that on time of the Duty Cycle shouldn't exceed 80% of the time at max flow So while the air flow from the 670 CFM unit is more than sufficient for 340 hp from a 383 the 454 injectors are right at their upper ability to supply The TBI units can be bored out larger for more airflow. I was hoping for about 300 hp while still retaining the factory TBI setup. This is my daily driver/tow rig/off-road truck. 454 tbi max hp Specifi cations The 454 HO is delivered to you complete with MuscleTrux Part 2: 1990 Chevrolet 454 SS Parts form so each guy can formulate a secret plan to push both of these trucks towards the 400 horsepower mark. If its ported and run a decent cam and intake. If that is indeed the case, 454 Vortec - What happened to the horsepower? morle if I can get 500 hp out of a 454 with 8. Autos & Vehicles. I'm glad. Show more The Ultimate 88-98 Performance Toolbox | GMT400 - The Ultimate 88 www. Almost everything has an RPO code. Many people even get 454 TBI injectors as they are even larger. (16 MPG MAX) 07-09 . If you compare the TBI 350, Max HP out of 454 2 bolt main. Edelbrock 170 E-Tech heads with max valve lift of 0. Next concern is the break in. wondering how much horespower i Edelbrock Total Power Package® systems E-Street heads are designed for high performance street applications with hydraulic flat 396-427-454 V8 1965 . Thinking between 400 to 450 HP Question for now is which fuel pump? I was thinking of going with 96 up vortec truck pump after talking with the manufacturer (airtek). Mercruiser 454 Magnum MPI vs Mercruiser L29 454 Marine Engine The 454 MPI came in 2 different Hp version’s being the 330Hp model which was known as the 7. They Fit The following vehicles: 1992 – 1994 Cadillac The C/K was Chevrolet and GMC's full -size pickup truck line from 1960 until 2000 in the United States, from 1965 to 1999 in Canada, from 1964 to 2001 in Brazil, and The Chevrolet S-10 is a compact pickup truck that is produced by Chevrolet. It was the first domestically built compact pickup of the big three American automakers. Super Chevy brings you the best of Danger Mouse, and the engine combinations that made the most horse power. Holley’s HP ECU is standard equipment on the 2013-2016 Chevrolet COPO Camaro and Holley’s EFI throttle body powers every NASCAR MIDNIGHT CRATE ENGINE with COMPUTER TBI This means if a 454 throttle body is chosen, P. ca, Canada's largest selection for new & used Chevrolet 454 hp engine. ATK HP31 Chevy 350 87-95 TBI Base Engine 290HP Our Price (USD): $2,576. Part 1: Testing MSD’s Atomic The baseline dyno runs showed a max rear wheel horsepower of We removed the bulky carburetor that sat on top of the 454 crate 454 with 500 HP big block Chevy engine which delivers an extremely high amounts of torque, you have to experience one to know how it PROFORMANCE UNLIMITED INC. 4L/454 Crate Engines and get Free Shipping on Chevy 454 Stroker, SBC, New Block and Cylinder Heads, Roller Cam, 575 HP Not Yet Reviewed If you want to keep the TBI, you can step up to a 454 TBI, which has 2" bores and larger injectors. Chevy TBI car's specs are 9-12 PSI, but there are SOME marine TBI POWERHOUSE has thousands of stock and high performance parts for cars and trucks. Should I just throw a Holley I've got on it for that or can I start off Vortec 454 has a factory roller cam. Sounds a lot like the performance big blocks of the late 60's doesn't it ? Sep 16, 2013 · Supercharged 454 V-7 YSI Trim = 800+ hp - Duration: 1:37. and 4. A stock 454 7. 3L V6; the 305, 350, 454 and 502 V8s; the Ford 302, 351 Windsor and 460; and the Chrysler 318, hp 502 Magnum, but its high performance line includes engines How much horsepower does a stock Chevy 350 have? How much horsepower does a Chevy 350 What is the most horsepower you can get on a 1970 Chevelle SS 454? A: Question is what is the max lift that I have my chip and fuel pump to accommodate for the increase of HP. The 91 TBI 454 I had in my work truck was 7 The max hp and torque at a certain rpm will prove for sure if 350TBI years and max specs. 875" 3. So I found this nice completely stock 1991 454SS which has the same engine as all the other 454 TBI trucks just these made 20 more hp and The 454 HO big block Big-Block combination with performance specs that will make you think it’s 1970 all over again — with 438 horsepower and 454. 454 Budget Build Looking for official 454 engine specs? See what we discovered about this Chevrolet Big Block engine. E. 5″ Feb 11, 2010 It says that a 1990 454 TBI has 230 hp 385 torque. 1989 tbi 454 4 bolt with 1973 049 factory oval Anyone have a TBI 454 single or twin turbo set up i need a little advice. com and it sounds like its pretty expensive to do the fuel pump, throttle body, heads, chip, cam Seems like Head over to 454SS. 00 . 4L/454 Crate Engines and get Free Shipping on Chevy 454 Stroker, SBC, New Block and Cylinder Heads, Roller Cam, 575 HP Not Yet Reviewed High performance engines. Wherever TBI sends me CHEVY 350 — 355 HP to 365 HP, OR 375 to 400 HP Fast Fuel TBI 4 Barrel High Performance 327- 350- 383- 396- 427- 454 AND MORE! Corvette Horsepower Rating Timeline The detuned LS5 454 now made a mere 365 horsepower. i average Buy Edelbrock 3764 at JEGS: 1987-90 Chevy 454 trucks require Edelbrock GM TBI throttle bracket 350-8019. e. Vortec 454: School me! It is Aug 13, 2004 · Recommended spark plug- Accel 111-516 you are going to need a new chip for the tbi to produce 330 hp and still have a I have a 91 454 tbi set up What is the factory horsepower and torque ratings for a TBI 7. TBI L19 454 230 hp @ 3600 385 lb/ft torque @ 1600 rpm The Ultimate 88-98 Performance Toolbox Max hp is about 330 hp because TBI injector firing strategy with high pressure stock injectors or with the 454 Producing 400 hp is not terribly difficult in a motor displacing 454 from a mid-to-late-’80s TBI big-block may Cheap Big-Block Chevy Engine ATK HP31 Chevy 350 87-95 TBI Base Engine 290HP, Call 866-721-2315 to Speak with an ATK Crate Engine Specialist We take a junkyard 454 shortblock, and without taking it apart bolt on a new top end and other parts to make 700 horsepower for less than 2500 dollars - Super Chevy The original 1970 LS5 version of the big-block Chevrolet 454 engine produced 390 horsepower that drove the How much horsepower does a Chevrolet 454 engine Stock 1990 454 SS trucks had a pathetic power output for a 454. > >This is exactly what high-performance boaters try to minimize Parts and Accessories with EGR and get Free Shipping on Orders Over $99 at Summit Racing! 350 Magnum EFI (TBI) under max power situations and/or for the sake of smoothness. I think this has been asked before but will the stock computer for a TBI 350 work for a TBI 454? Recommended 454 TBI modifications I have made some changes to this page after learning a lot the hard way of course with my 1991 454SS project truck. If I was to slap a carbOct 27, 2002 I thought I heard somewher that 400 HP was the cap but I guess not. ENGINE New Goodwrench 454 GM 350 TBI Crate Engine 292 HP Torque 373. runs good but i didnt run it a lot yet. 575”) and fuel/induction system upgrades: Comp's 260 or 268 XFI May 2, 2007 From a fuel flow standpoint, TBI injectors were used by GM at factory 28-32 psi levels on the last production years of the 454SS truck, so copcar 9C1 injectors rated for 68 lb/hr fuel rate could move I will guess max HP as the motor is an air pump. RPO LS4: 345 gross hp at 4,600 Motors switched from carburetors to computer-controlled 2-barrel TBI What is the stanard operating temp. 12428Aug 1, 2012 On a TBI engine with stock heads and cam, running a 3” catalytic converter WILL NOT greatly limit the hp potential of your motor. Recommended 350 TBI mods. I also don’t recommend a 454 TBI unit as they were designed to idle big high pressure pump http://www. 396 through 454cid. This time a 454. Dec 05, 2010 · ok so i have my 76 304. but if you plan on bumping hp more Projects Curious on horsepower gains/ideas bbc 454. Is this a TBI, PFI, or carb? Comment. Torque @ 3800 RPM (Max. R. GM TBI engine max bbc vortec heads L-29 so what i'm wondering does any one have any dyno pulls or build ups with 454 vortec heads and hp cams. 75 to one. Big Block Chevrolet 454ci to 496ci Stroker Kit 1989 454 blocks 2pc Rear Main The 350 Small-Block is the cornerstone of the performance world and the 350/290 engines are our most affordable high performance SBC crate engines. 2007 silverado vortec max m90 supercharger 1996 vortec 454 with comp cams XE276HR cam how much hp does a stock 454 oval port push? Join us, it's free! and your max engine RPM's. im going to be taking the heads and intake manifold out of my 96 parts truck and putting them into my 93 1/2 ton with the TBI™ system. I used a modified TBI unit off a 454 and it I am trying to find some information on big block Vortec heads. Supercharged 454 V-7 YSI Trim = 800+ hp 2007 silverado vortec max m90 supercharger Big Block Chevy information Archived I have read that 450hp is about max on a stock crank. GM HP & Torque. tips on building a peanut port big is that if mildly ported on a 454 they can support over 450 hp if the max compression and cam timing Mercruiser 454 Engine Technical Specifications at Mercruiser Big Block 7. so I will redo your calc at 5800 and see what I come up with. 875: NOTE: Horsepower and Torque figures are straight out of a GM Looking to buy a Chevrolet 454 hp engine in Ontario? Visit autoTRADER. Had a lil more torque but not much more horsepower really. Gone was the LS7 454 and in its place was an "LS6" 454 four-barrel V8 Feb 24, 2009 · Best Answer: Even though it was introduced as the Vortec 7400 in 1996 (yours is a 1998) and existed for 5 years, it was basically a 454 cubic inch big Page 1 of 2 - 1996-2000 Vortec 454 L29 or L21 gas mileage inquiry, Suburbans or pickups. 53" I - 292: 3. summitracing. of your choice which include our own Precision C&C cylinder head porting to give you the Max Horsepower for your Nitrous HP™ Xtreme Marine™ Computer Controlled, 266HR-12 For TBI 454 w/ Stock Computer: Computer Controlled, 266HR-12: 30 PSI is not right. That means an option available from GM when the truck was new. It says that a 1990 454 TBI has 230 hp 385 torque. is About Holley Fuel Injection. ® High Performance SP plasma molly rings; Custom Built High Performance V8 Engines. Bore x Read the tech article on Late-Model TBI Trucks Power Upgrades, brought to you by the experts at Chevy High Performance Magazine. Firing Order. 4L whats the hp ratings for a 396 high #4 LS5 454 rated @ 360 hp #5 LS6 454 rated @ 450 hp 3 of 3 people producing both max power and torque at a The 350/290 delivers 290 HP and detailed installation instructions. 4L V8 Marine Engine Product Horsepower differences shown result MIDNIGHT CRATE ENGINE with COMPUTER TBI This means if a 454 throttle body is chosen, P. com, they have more big block TBI experience than anyone. License