Vortec 454 Specs

Bore x Stroke (in. 4L 454 Vortec engine. 454 Budget Build. Click Header to Sort. A Truck TB has a orange spring on it and a cam that is close to the 98-99 F-body ones but it's not an exact fit. If you're not a member, you're welcome register here for free!. L29 Heads VS other BBC Heads I have found myself in need of a new head on my 99 K2500, 454 Vortec engine. This suburban has the powerful Vortec 454 Engine, the HD 4L80 4 speed transmission, the 4:10 gears with locking differential and full floating diff, Tow package, Aux trans cooler, Aux Oil cooler, HD Cooling and booster fan system, HD front and rear springs and all the stuff to make this big rig last forever towing heavy loads. The Vortec 5300, or LM7/LM4/L59/L33, is a V8 truck engine. Below are several variations of our 383 Stroker Engines. 4 liter (454) engine. MarineMax Hydraulic Roller 222/230 Cam for Chevrolet 454-502 GEN VI Big Block Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name. 3l 262 Cid Engine Repair Manual Mercury Mercruiser Number 16 Marine Engines Gm V-8 454 Cid (7. The 1970 454 Cubic-Inch Big Block Engine. 4L Fuel Injector Upgrade / Replacement Bosch 0280150973. This harness is designed to be a complete wiring system for the fuel injection system on General Motors 1996-2000 7. I was disappointed with the old Van, The 454 should have been able to pull anything, GM just detuned it so much so it would run on regular gas, and enhance reliability. Chevy performance parts, Accessories, and crate engines for sale. 696, [rounds up to 14. 4L 454 Torque Specs; Results 1 to 8 of 8 Can anybody tell me the torque specs and pattern for the head bolts, and intake manifold bolts? GM head stud, 65. Revised Cylinder Head Torque Specs for GM 3. American engine codes. 0 liter GM Vortec engine, is rated at 375 horsepower. 4 L (454 cu in) V8 was a truck version of the Chevrolet Big-Block engine. I can still see the crosshatch pattern from the finish hone, so I don't think the engine rebuild is very old. Current build-2002 Chevy truck buggy, 06 front clip tube-coilovers,bypasses-8. 50% torque (OK, let's just say 35 Ft/Lbs) then final round at specs. This website is not owned or operated by General Motors. One of the components from the original engine that is not transferable to the ZZ4 is the flywheel. and 215 ex. GM did put a 454 in the 2500. Id go with the 8. 1L engine? Our aluminum cylinder head, camshaft and modified intake manifold top end kits are a great place to start. Chevy Big Block Engine Suffix Codes. It continued in this present form until the end of 2000, where it was superceded by an all-new "Vortec 8100" (496 cid), which still continues today. It runs okay , but i want it to run great. 7 vortec sluggish, loss power. The Vortec 5300, or LM7/LM4/L59/L33, is a V8 truck engine. 050 to be around 205 in. Covering fuel delivery, performance and starting in regards to the fuel system operation. 00-inch stroke to 4. Here are some drive train specs for 1973 - 1987 Chevy trucks. It is becoming obvious that developers of new eBook technology and their distributors are. Car enthusiasts usually refer to this type of engine as simply "big block" which is meant to differentiate the engine from its smaller cousin, the Chevy small block. Find CHEVROLET 7. The introduction of the 454 engine did not actually begin until 1970. Just some personal side notes on the 8. pt 1 of 2 pt series. Big Block Chevy V8 - BBC - Engine Specifications 396-454 CID - BBC Firing Order. Both trucks were automatics and had 4. 4l) / 502 Cid (8. 4 L (454 cu in) V8 was a truck version of the Chevrolet Big-Block engine. 0 is the strongest and most fuel efficient engine in its class. Including a Large Selection of New, Used and Surplus Engines for Sale. 454 Budget Build. 0 liter GM Vortec engine, is rated at 375 horsepower. All specs are taken from Helms/GM documentation for a 2000 Model F-body. 050 cam and. Firing order for 1996 chevy 454 vortec. RV with Chevy 454 engine problems: Mark: 9-9-09 : I have a 1986 El Dorado motor home with a chevy 454. High Output Vortec 454 Engine, NV-4500 HD 5 speed Transmission, 4 wheel Drive, 4:10 Gears, Offroad Skid Plates, Locking Diff, HD Cooling, and all the HD things that were offered are on this model, giving it a tow capacity in the 16K lb load range if a 5th wheel was on it. In 1970, GM pushed the performance bar higher with the introduction of the Chevy 454 V8. 4L takes at oil/filter change. Stroker engines on sale! 454 light truck 454 1968-1990: 496 truck upgrade for tired 454's Available in MK4, Gen 5 and 6 as depicted: 454 turnkeys are also available with TBI and Multiport Injection. i would half to say that the old style would be pushing roughley the same numbers. Find a full line of new or remanufactured to marine specifications, marine engines & parts; including Diesel, Ford, Chrysler, & GM Marine engine parts. 3 l (325 cu. By the time 1972 was reached, change of power calculations along with reduced power for emissions control resulted in a drop to max power rating of 270 horsepower with a peak torque of 468 lb-ft. GM Parts Engines offer a 36-month or 100,000-mile limited warranty when the engine is installed in a recommended application. MarineMax Hydraulic Flat 228/236 Camshaft for Chevrolet 396-454 Big Block. You can find our other LS engine spec guides and LS-related tech articles here. Variants of this engine are available in displacements of 293 cid (4. 050" lift that is standard in the cam industry. The Vortec 454 engine had 7,439 cubic centimeters, or 454 cubic inches, of displacement, Transmission. Formula for the GM 3 Bar MAP sensor is (V*8. 4L engines in model years from 1965 to 1990, and the Mark V is found on 7. Also the cam sensor pickup or signal generating marks on the cam gear. View and Download Marine Power 454 owner's manual online. Over 6,000 Automotive Torque Specs. 3l 262 Cid Engine Repair Manual Mercury Mercruiser Number 16 Marine Engines Gm V-8 454 Cid (7. 050 to be around 205 in. When used in direct replacement applications this 454 will come with a 3 year/100,000 mile warranty serviceable by any GM service department near you. Remanufactured: Remanufacturers take existing engines and completely rebuild them from the ground up. It is a stroked (by 9 mm) version of the Vortec 4800 and replaced the 5700 L31. 8L), 325 cid (5. What I thought would make a good engine is vortec 454 heads on a normal TBI 454 with a few little doo-dads here and there. 6 Cylinder Chevrolet Engine Kits GM Chevy 250 4. Powerful enough to accommodate multiple slide-outs and still perform superbly on mountain roads or the open highway,. Check out our selection of GM performance crate engines for sale today! JavaScript seems to be disabled in your browser. Top 10 Reasons to Build GEN VI Based Chevrolet Big Blocks. 4 liter engines with 365 or more HP that are 1992 and newer. v) gm 454 v-8 1992-1996 engine & stern drive by component and buy discount parts from our large online inventory. Vortec 454 Engine Specs Engine. 1-800-575-6998 Overseas 1-443-451-5139. Building a new Gen VI Big Block 454 Chevrolet Vortec Engine. The cam specs are aggressive enough to produce real power, but the engine will still idle in gear and generate enough vacuum to support power brakes. The name first appeared in a 1984 advertisement for the 1985 model year 4. THE W22 22,000LB GVWR CHASSIS For the model year 2001 Workhorse has introduced the first 22,000 lb GVWR chassis for motor homes. 1L is the debut of a new, highly-refined big. You need to basically torque them down in sequence to the first step, then go back through and torque them down to the next step. 1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s. Replaces 1986 - 2004 3. The piston moves up and down in the cylinder and the extra clearance results in a greater amount of rocking in the cylinder, producing a loud knocking noise. MarineMax Hydraulic Roller 222/230 Cam for Chevrolet 454-502 GEN VI Big Block Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name. 1 for bone stock. If you are looking for replacement 454 7. Re: Torque specs. 19 intake, 1. Its 454 cubic inch V8 developed 230 horsepower @ 3600 RPM, and 385 pound-feet of torque @ 1600RPm. This casting incorporates all of the best innovations through the big-block's development. I noticed that when I turned the key that I don't get any response on the dash board other than the light indicator for the automatic transmission gear. i need to know the torque specs for the upper and lower intake bolts and any other information that would be helpful. Powerful enough to accommodate multiple slide-outs and still perform superbly on mountain roads or the open highway,. Clicking this will make more experts see the. 050 In/ex-Lift in/ex-centerline-description. As you can see, it was selected by GM for use in most high performance engines due to its ideal specs. Be sure to follow this procedure for best results. These high-performance GM 454 crate engines are great choices to upgrade your vehicle. 0 is the strongest and most fuel efficient engine in its class. Then, you turn them the specified angle in sequence and do that until all the steps are done. Thinking about replacing the pontiac 455 in my trans am with a fuel injected motor and was wondering about the power potential of these motors. It continued in this present form until the end of 2000, where it was superceded by an all-new "Vortec 8100" (496 cid), which still continues today. 1L 8 Cylinder – 496 Cubic Inches Designed for gasoline,propane and natural gas fuel. Marine Engine Blocks (no core charge) 3. Using the proper oil in the MerCruiser 454 engine will aid its longevity. 1-800-575-6998 Overseas 1-443-451-5139. I have a 1998 chevy 3500dually with vortec 454. This page is dedicated to the owners of these vehicles equipped with GM's dual point fuel injection (model 220 TBI). 050, maybe as much as 210 @ 0. Crusader Captain's Choise 5. This information should be used as a guide only. 6 pounds/hour. @BR2+: Yes, Chevrolet continued putting their 7. One very respected source says that according to records at Tonawanda, no 454 engines came with aluminum heads. 4L Magnum MPI. Camshafts Lifters Pushrods Rocker Arms Timing. Specific models include (but may not be limited to): Chevrolet Silverado,. you are looking at roughley 450 hp at 5800 rpm and 510 to 515 ft. UltraPower GM / Workhorse 7. Lookup MerCruiser 7. So, if there is a numbers matching 454 in the car, that is a good indication it is a real SS. You will notice the difference in fuel consumption - my carbed 84 Monaco 36' with tag averages 6. Detailed features and specs for the Used 1990 Chevrolet C/K 1500 Series including fuel economy, transmission, warranty, engine type, cylinders, drivetrain and more. 1996 Chevrolet Silverado 3500 Dually. A 2000-2002 TB has a blue spring on it and it has the biggest throttle cam, GM Part# 17113647. (Image courtesy of GM Media. It continued in this present form until the end of 2000, where it was superceded by an all-new "Vortec 8100" (496 cid), which still continues today. Whether a truck or SUV parts buyer needs a motor replacement, the Chevy L29 engine used inventory found here will meet or exceed all expectations. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. 0 Litre 140 hp GM base engine to replace any older 2 piece seal OMC Stringer, Cobra, Volvo & MerCruiser Model Stern Drives. 3l 262 Cid Engine Repair Manual Mercury Mercruiser Number 16 Marine Engines Gm V-8 454 Cid (7. (2) Add amount specified or amount drained, which ever is greater. Stroker engines on sale! 454 light truck 454 1968-1990: 496 truck upgrade for tired 454's Available in MK4, Gen 5 and 6 as depicted: 454 turnkeys are also available with TBI and Multiport Injection. Find CHEVROLET 7. 00 image Radiator Insulator, Lower, NOS, w/number on part use with HD Radiator (2 required) #458355 Each 1976-82 12. (Standard. 13 Application: 1970-76 Chevrolet 454 Engines OEM#: 343738 Monster Part#: G102 Shipping: Free 3-7 Day Ground S. Replaces 1986 - 2004 3. 4L (454) SFI V8 (VORTEC). Almost everything has an RPO code. I haven't had much time to spend learning and programming lately, but removing most of the torque management and adjusting a couple of timing points made a hugh diffference in performance and gas mileage, but I haven't even checked mpg yet. They are reliable and well-designed too. replacement engines. † Tighten the cylinder head bolts to 44 ft. Car Brakes: How Do You Know When to Change Them? By Zach Bowman For those who suffer a daily commute through heavy traffic, your vehicle's braking system can bring thousands of pounds of metal, plastic and empty Starbucks cups to a stop hundreds of times before you get to work. We disassembled the engine to a short block in. 4L Head Gasket Issue: General Motors (GM) 7. I ran across a remanufactured Vortec 454 long block for sale today and thinking about using it instead of the '86 454 truck engine I have. In our comprehensive General Motors engines guide, we've compiled information about all of GM's current engine offerings, including specs, pictures and more. Block (P/N 19170538): Cast-iron with four-bolt main caps. 4 Liter, 8 Cylinder, 454 C. They are also not compatible with any of the current LS engines. Building a new Gen VI Big Block 454 Chevrolet Vortec Engine. Find the engine specs, MPG, transmission, wheels, weight, performance and more for the 2000 Chevrolet C/K 2500 Crew Cab Fleetside Crew Cab. These engines were rated about 275-290 HP and about 390-410lb/ft. Dust Runners Automotive Journal 273,819 views. My Vortec 454 has been very reliable. Furnishing West Texas and the U. Marine Engines Inc. Top quality remanufactured engines for domestic and import applications. Harmonic Balancer Torque Specs Dorman # Applications Torque Spec 594-001 1990-88 3. Select MerCruiser Test Model HP Fuel consumption WOT; MerCruiser 3. 5 GPH: MerCruiser 4. Kinda hoping that someone in the Bangshift world has some experience with these. We have 400 remanufactured longblock engines with a fill rate of 90% +. This BRAND NEW 7. This filter fits your GM vehicle, as well as a wide range of other vehicles on the road today. 1L Vortec V-8 specs, history, and horsepower and torque curves. For GM OBD2 Codes, please see our Full List of GM OBD2 Codes or specific model pages below GM OBD/OBD2 Codes By Year. 0 info found HERE! Update: 10/15/2004. Anyone have any other tech advice on the Vortec 454? Anyone know if the Crane Energizer roller rockers clear the OEM valve covers? _____. The Chevy 454 was first introduced in 1970. The Corvette last used the 454 in 1975, and the 1976 Caprice/Impala was the last GM passenger car to use this engine. I noticed that when I turned the key that I don't get any response on the dash board other than the light indicator for the automatic transmission gear. I had a 455 Pontiac with a [email protected] THE W22 22,000LB GVWR CHASSIS For the model year 2001 Workhorse has introduced the first 22,000 lb GVWR chassis for motor homes. Ford “FE” Engine Torque Specifications; Ford Y Block Block Casting Numbers; Tire Size Cross Referencing Chart; Vintage Tire Size Conversion Chart; Ford Pinto/Mustang/Ranger 4-Cylinder “Lima” Engine; Identifying 1940-1948 Ford Brake Drums and Brake Shoes; Holley Mechanical Secondary “Double Pumper” Performance Four Barrel Carburetor. Introduced in 1996, it was produced for five years, until replaced by the Vortec 8100. Mecruiser Parts Select Engine Size - 4 Cylinder, 6 Cylinder In-Line, V6, V8 Small Block,V8 Big Block,Race Sterndrives. Just some personal side notes on the 8. This Service Manual has easy-to-read text sections with top quality diagrams and instructions. The Classic MPI, a 6. Find Chevrolet Performance 7. GM encodes the engine type in character 8 of the VIN. The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder Head Tightening Sequences among other engine specs. NOTE: Horsepower and Torque figures are straight out of a GM Factory Service Manual. The engine has a bore and stroke of 4. It was not the ideal time to introduce a large cubic. Hi, I have a K3500 crew cab dually with a Vortec 7. Engine Torque Specs. Power output is 270-305 hp (313-320 kW) and torque is 315 lb·ft (427 N·m) to 335 lb·ft (454 N·m). 050" If the engine is changed alot from stock then please post compression, cam, power adder, etc and I can give you a better setting for that combo. Our 454 HO Marinized Airboat Engine Comes With The Intake Manifold, Marine Short Water Pump, Dip Stick & Tube, Harmonic Balancer, 14. GM did put a 454 in the 2500. Piston slap is caused when there's too much space between the piston and the cylinder wall. The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. I had been experiencing some engine sputtering and stalling when the engine was under load, noticed alot going up hills. 4 LSX 454 Created Date. A Truck TB has a orange spring on it and a cam that is close to the 98-99 F-body ones but it's not an exact fit. 454 LSX Intercooled Twin Turbo. 1996-2000 Long Block Crate Engines 19207552 and get Free Shipping on Orders Over $99 at Summit Racing! Chevrolet Performance 7. Powerful enough to accommodate multiple slide-outs and still perform superbly on mountain roads or the open highway,. 6 Cylinder Chevrolet Engine Kits GM Chevy 250 4. 4 liter (454) engine. from 1999 to 2007. 050 cam and. As you can see, it was selected by GM for use in most high performance engines due to its ideal specs. It is a stroked (by 9 mm) version of the Vortec 4800 and replaced the 5700 L31. I suspect the cam is around 200-205 duration @ 0. He installed the LS7 in the car in the late 1980's and the number stamped on the block is. The mercruiser 454 service manual very good for beginner. The intake gaskets seem to be much more of a problem on the Vortec engines. ) natural aspirated V8 90° four-stroke gasoline engine from a Generation III small block V8 truck engine series. Aftermarket building techniques take it well past that figure. Engine Type: Chevy Big-Block V-8. 0 MPI features high performance aluminum heads, Crusader’s exclusive HO exhaust system, and is fully freshwater-cooled. Over 6,000 Automotive Torque Specs. Ask the GM Technician ; 1997 vortec 454 timing what are the timing specs and is there anything out of the ordinary i need to do to set the timing after the. 125" Stroke Crankshaft; Texas Speed & Performance Forged 6. Remanufactured GM 7. 4L (454) Custom Tuning Part# UP74 If you will be sending us your ECM for reprogram you do not need to select core charge but if you are wanting us to program and send you a computer you must choose the core charge. 4 liter V8 in pickup trucks and suvs until 1997. Diesel got me, as expected. The listed part numbered cams will not fit these models, so if you require a camshaft with the oiling groove, please call us at 1-800-999-0853 or click here to contact us , and we will assist you with placing an order. (60 N-m) in the order shown in Figure 1. Discuss 2000 GMC 7. If you have a question or don't see the engine you are looking for, email us or call us at 1-800-275-7371 and we will be happy to answer your questions. 17 years only building marine engines. Also, to control the 4L80E automatic transmission using the 1996-1997 computer Service #16229684 and #16244210. General Motors manufactured this engine in 1996, but upgraded to a different model engine five years later. Top 10 Reasons to Build GEN VI Based Chevrolet Big Blocks. Our remanufactured crate engines are still reliable and powerful. Below are several variations of our 383 Stroker Engines. 1 SFI engine. Detailed features and specs for the Used 1990 Chevrolet C/K 1500 Series including fuel economy, transmission, warranty, engine type, cylinders, drivetrain and more. replacement engines. The Chevrolet 454 engine was a part of the 2nd generation of Chevrolet big block engines. I can maintain speed allot better with the big block than I could over my previous truck with the 350. Just wanted to post this question concerning how well do you guys think the stock 96+ vortec 454 intake manifold flows and at what power levels do you think it starts to become a restriction? I've been looking at the Edelbrock Pro-Flo XT EFI intake that is designed for an LSx style 90mm TB. The Corvette last used the 454 in 1975, and the 1976 Caprice/Impala was the last GM passenger car to use this engine. Please contact for current pricing. Connecting Rods (P/N 19170198): Forged steel. It was not the ideal time to introduce a large cubic. 454 Big Block Performance Specs The original LS5 engine was introduced with 390 hp and 500 lb-ft of torque, while the LS6 was rated at 450 hp. 1996-2000 long block crate engines offer tremendous value in a big block assembly. 4L takes at oil/filter change. Joe Fina of Seaford, New York, on Long Island, owns this gorgeous 1973 Chevelle SS, which is powered by a 454. 5 GPH: MerCruiser 4. 1996-2000 Long Block Crate Engines 19207552 and get Free Shipping on Orders Over $99 at Summit Racing! Chevrolet Performance 7. 135 hp: 10. The HT502 uses the same cam as the Vortec 454 so I know that pattern should give good low end torque. I love it for pulling, especially in the hills. Revised Cylinder Head Torque Specs for GM 3. RV with Chevy 454 engine problems: Mark: 9-9-09 : I have a 1986 El Dorado motor home with a chevy 454. L59 denoted a flexible fuel version of the standard fuel LM7 engine. Using the proper oil in the MerCruiser 454 engine will aid its longevity. Happy to hear its running good now. This info was gathered from many sources. Car enthusiasts usually refer to this type of engine as simply "big block" which is meant to differentiate the engine from its smaller cousin, the Chevy small block. 1986 chevy 454 vortec firing order. This item is a Special Order Part. The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. 8100 Destruction pictures are here! I have ordered a camshaft to replace the stock piece in the 8100. The Vortec 7400 L29 7. Id go with the 8. It has 200k on it, and has a horrible low throttle input miss and a high idle at times. Replaces 1986 - 2004 3. The Chevy 454 was first introduced in 1970. The Stingray name (now spelled as one word) appears on the front fenders above four vertical fender vents. 4 vortec 454 has 290 horsepower and 410 ft lb or torque How Much horse power did the 1978 Chevrolet k-10 pick up truck with the 454 engine. 050 cam and. There were a few different trucks and full-size SUVs that came equipped this engine during the years it was on the market. 454 Chevy Big Block 450 Horsepower @ 5,250 RPM. High Output Vortec 454 Engine, NV-4500 HD 5 speed Transmission, 4 wheel Drive, 4:10 Gears, Offroad Skid Plates, Locking Diff, HD Cooling, and all the HD things that were offered are on this model, giving it a tow capacity in the 16K lb load range if a 5th wheel was on it. I had a 455 Pontiac with a [email protected] Over 6,000 Automotive Torque Specs. Discuss 2000 GMC 7. 0L) and LO5 (5. Replacement GM Goodwrench Engines, Chevy Performance Crate Engines, Genuine GM Replacement Engines , Free Delivery. Shop genuine GM parts & accessories for Chevrolet, GMC, Buick, Cadillac, Saturn, Pontiac, & Oldsmobile. Chevy, GM Engine Manuals: Rebuilding, Modifying, Performance, Blueprinting For many auto enthusiasts, there is as much enjoyment to be derived from rebuilding, modifying and blueprinting their car's engine as there is in getting behind the wheel and driving it. This BRAND NEW 7. 1L Vortec V-8 specs, history, and horsepower and torque curves. 11 in the formula for 1 mile above sea level. Find the right 7. Chevy, GM Engine Manuals: Rebuilding, Modifying, Performance, Blueprinting For many auto enthusiasts, there is as much enjoyment to be derived from rebuilding, modifying and blueprinting their car's engine as there is in getting behind the wheel and driving it. Chevelle models ranged from economical family cars (by the standards of the day) to. 4L (454 ci) Vortec SILVER package is great for those that need a little more than just a base engine or long block, but still don't quite need a complete engine package. Since 1938, Edelbrock has manufactured its core products in the USA for quality & performance. 37, thanks to longer connecting rods and a block with taller decks. Also, I'd like to keep the same ECM tune and add only a programmer if needed. The "B28" can was used on fuel injected engines and a few select engines that produced very poor vacuum at idle. When the oil pressure reaches about 28kpa (4psi) through the cranking and the fuel pump relay does not complete the circuit, the oil pressure switch will close to complete the circuit to run the fuel pump. 045" MSD box. Happy to hear its running good now. you are looking at roughley 450 hp at 5800 rpm and 510 to 515 ft. These GM Performance LSX Bowtie engine blocks have been designed for the advanced competition engine builder. The Chevy 350 engine is considered by some to be a great engine, far better than others of its kind. 1 800 767 4921 Shipping Coast to Coast and International. Information about GM's 5. Power output is 270-305 hp (313-320 kW) and torque is 315 lb·ft (427 N·m) to 335 lb·ft (454 N·m). Find the right 7. It was usually found in the C and K Series 2500 and 3500 pickups. Chevy 350 Remanufactured Engines. "Spare" 454 Build-up 96 L29 Vortec 7400 to Marine Motor Ok, since I am STILL waiting on my block to be done for the 540 I couldn't pass down a smoking deal on a running take out 96 L29 Vortec 7400 truck motor that I got the bright idea (only a year after I was suggested to do thisI never listenhaha) to build a spare motor so I will. Every TBI will be Flow Bench tested, calibrated, and idle adjusted making it ready for easy installation. But they offered a Silverado 1500 with the 454 as a performance package in the early 90s. 4L #12550009 See more like this gen 6 454 bbc rocker arms springs retainers rotocoils seals vortec heads 96 7400 Pre-Owned. Chevrolet Factory Cam Specs by part number Part # Lifter type–duration at. 4L (454 ci) Vortec SILVER package is great for those that need a little more than just a base engine or long block, but still don't quite need a complete engine package. As you can see, it was selected by GM for use in most high performance engines due to its ideal specs. 1996 Chevrolet Silverado 3500 Dually. Our Chevy 454 Long Block Engine is on sale. I can't speak for the Poncho 455 but I can for the Rat motors. DickandLois. 1996-2000 Long Block Crate Engines 19207552 and get Free Shipping on Orders Over $99 at Summit Racing! Chevrolet Performance 7. 454 engine was utilized in both trucks and cars for heavy-duty performance and work applications. those specs are from the new 454's i have no idea how mutch the older ones are. By 1972 SAE net ratings were used by all the manufacturers. I think I am going to swap on a good set of aftermarket heads and change out to an Edelbrock Pro Flo EFI.