454 engine specs

The casting number will confirm BBC engine specs including the size, year (or year range) of the block, and whether it is 2-bolt or 4-bolt main. ... Regarding parts availability, the 454 engine has the most availability of parts in comparison to the other engine sizes. This is due to the number of blocks available for the 7.4 liter versus a 396 ...

Jan 30, 2004 ... didnt even look at the specs was $8000. my question was why is there almost$1500 differenc in the heavy duty truck motor and the rv motor. after ...In fact, the LS6 (optional motor) that was available in 1971 was one of the highest-output 454 engines in production for its configuration. The fire-breathing Rat blew brimstone at the rate of 425 hp.1978 Chevrolet 454 Specifications. General Motors (GM) produced the 454 engine from 1970 until 2001. GM initially used the 454 big-block Chevy (BBC) in Chevrolet's high-performance and full-size passenger cars and then added it as an engine option in 1973 and later Chevrolet and GMC trucks. GM developed variations of the BBC known …TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS. TITLE 454 (12498778) Short Block Specifications IR 14FE14 PART NO. 19172101 DATE REVISION AUTH SHEET OF4 18 14FE14 Initial Release - Patrick Risse N/A 454 High Performance Engine Torque Specifications: NOTE: These specifications are correct for the ZZ454 or 454HO Base engine.Crusader Marine Engines 7.4L MPI. Introducing the first in a new breed of excellence. ... 7.4 liter (454 c.i.d.) Compression: 8.9:1 : Electrical system: 12V negative ground : Engine Rotation: Left Hand and Right Hand : Weight: 1150 lbs. (direct drive) Maximum hp* 320 (239 kW) @ 4400 rpm :Chevrolet will sell you a new 454 today, ready to run, like the 454 HO with 438 hp and 500 lb-ft of torque or the ZZ454 with aluminum heads, rated at 469 hp and 519 lb-ft of torque. These are technically “Gen VI” engines – the original 454 was designated Mark IV. The new engines have four-bolt mains and forged cranks and rods like the ...Chevrolet will sell you a new 454 today, ready to run, like the 454 HO with 438 hp and 500 lb-ft of torque or the ZZ454 with aluminum heads, rated at 469 hp and 519 lb-ft of torque. These are technically “Gen VI” engines – the original 454 was designated Mark IV. The new engines have four-bolt mains and forged cranks and rods like the ...

Jan 30, 2024 · The 1976 Chevy 454 engine features a V8 configuration, meaning it has eight cylinders arranged in a V shape. This design provides excellent power and torque, making it suitable for heavy-duty applications. With a displacement of 454 cubic inches (7.4 liters), this engine is capable of producing substantial horsepower and torque. 1988-1990 L19’s were Mark IV 454 blocks, with 4 bolt mains and a 2 piece rear-main seal. Air and fuel was supplied 2 barrel throttle body EFI system. The cylinder heads were the ubiquitous peanut port small ovals. Valve-train was non-adjustable with a flat tappet camshaft. Compression ratio checked in at a whopping 7.9:1.The crankshaft delivers a 4.125-inch stroke to achieve the engine’s 454 cubic-inch displacement with the 4.185-inch bores. ... The fastener torque specs are verified by the computer and recorded ...The Biggest Chevy Muscle Car Motor. When the 454 cubic inch engine appeared in the Chevrolet catalog in 1970, it was intended to rule the streets by building on the same Mark IV design architecture that had defined the 427 cubic in V8 that preceded it. The 454 maintained the 427's 4.25 inch bore, but it increased the stroke to 4 inches, and it ...See All 21 Photos. The stock, 114cc, heart-shaped combustion chambers were designed for a 4.50-inch bore (the 8100 bore measures 4.25). The chambers overlap the 496's bores, which shrouds the ...Keeping with the LS tradition, this LSX454 requires no more space under the hood than production LS engines. Specifications: Power: 599 HP @ 6000 RPM, 572 ft. lbs. of torque @ 4900 RPM Displacement: 454 CID, 7.4L Bore x Stroke: 4.185” x 4.125” Compression Ratio: 11:1 Recommended Fuel: 92 Octane Block: LSX Cast Iron with 6 bolt cross bolted ...

That 454 was a member of the engine family known by racy types as the Rat Motors, so called because the small -block Chevy V8s were known among the same gasoline-scented folks as the Mouse Motors ...Jan 16, 2024 · Engine Oil Specifications. The 1978 Chevy Truck’s 454 engine requires high-quality engine oil that meets the following specifications: – Viscosity: 10W-30 or 10W-40. – API Service Classification: SF or SG. It is important to use engine oil that meets these specifications to ensure proper lubrication and protection for the engine components. Advertisement Kindle Paperwhite measures 6.7 inches (169 millimeters) high by 4.6 inches (117 millimeters) wide. It is a scant 0.36 inches thick (9.16 millimeters for the WiFi-only...Specifications for the 1974 Corvette, including dimensions, electrical, capacities, engine, and features. All options are listed, including prices and quantities shipped. ... 270 Horsepower 454 Cubic Inch LS4 Engine 3.08:1, 3.36:1 (3.55:1 with M21 Transmission) Transmission Synchromesh All Four Gears Standard Fuel Tank Capacity

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Jun 26, 2023 ... Tearing down our Big Block chevy and we find out this wasn't just your ordinary 454 Block... Don't forget to head over to www.baldeagle.com ...This was the 1958 W Series engine. These motors ranged from 348 to 409 to 427 CID, developing up through a [factory claimed] 430+ horsepower and 435 ft. lbs. of torque. The Chevy V8 is sometimes called the "Rat" motor, a take-off from the popular term "Mouse" motor, given to the Small Block by its enthusiasts. The LSX454 drag race engine must have the valve lash adjustment maintained. Proper valve lash is 0.020” for both the intake and exhaust valve. Valve lash had been set during engine build, but should be rechecked once the engine is at operating temperature and then re-adjusted after every 50 drag race runs. Related:GM's Vortec 8100 Engine—The 454's Forgotten Big Brother. ... LS and Vortec Engine Specifications. Engine. Displacement. Bore x Stroke (inches) HP/TQ. Compression. LS1. 5.7 liter (346ci) The LS5 454 was a $279 extra for the SS group. It had 365 bhp and went into 9502 of the 19,293 Chevelle SSs (including El Caminos) Chevy built for 1971. Chevy had taunted enthusiasts with word that the majestic 454-cid LS6 would be back for '71. Compression would be a modest 9-0:1, but output a still-formidable 425 bhp. The crankshaft delivers a 4.125-inch stroke to achieve the engine’s 454 cubic-inch displacement with the 4.185-inch bores. ... The fastener torque specs are verified by the computer and recorded ...

7.4L V-8 LSX 454 Features& Specifications. Lighter and more compact than an original Big-Block 454, the LSX 454 is filled with a super-tough rotating assembly and features a pair of our deep-breathing CNC’d ported cylinder heads. The 7.4L V-8 LSX 454 Small-Block Engine from GM Powertrain OEM Sales is lighter and more compact than the big ... Buying a HDTV is hard enough with so many different manufactures, model numbers, and sizes, to make things a little easier we've put together a list of the most common specificatio...The original 1970 LS5 version of the big-block Chevrolet 454 engine produced 390 horsepower that drove the Chevrolet Corvette. The LS6 version produced in the same year and install...The 1990 Chevy 454 engine is a big-block V8 engine that belongs to the Chevrolet Mark IV engine family. It has a displacement of 7.4 liters or 454 cubic inches, hence the name. This engine features an overhead valve (OHV) design with two valves per cylinder, providing excellent low-end torque and power. The Chevy 454 engine utilizes a cast-iron ...The Chevrolet 454 V8 originated in 1970, it evolved from the famous 427 and its improvements allowed versatile usage. The 454 originated in 1970, a versatile engine that would be used in automotive and marine applications. This engine was used in many of Chevrolet’s flagship models, including the Chevelle, Monte Carlo, and Corvette.Chevy 454 Engine Specs. Specs for the 1970-1976 big block 454 cid engine are as follows: Engine: Chevrolet 454 Big Block. Displacement: 454 cid (7.4L) Block/Heads: Cast Iron. Configuration: 90° V8. Bore x Stroke: 4.25″ x 4.0″. Compression Ratio: 10.25:1, 11.25:1, 8.2:1. Firing Order: 1-8-4-3-6-5-7-2. Engine Weight: ~685 lbs.3) All 73-74 Corvette 454 cid engines used a cast nodular iron crankshaft; 4) All 70-74 Corvettes with 454 cid engines, except 71 LS-6, used the same size intake and exhaust valves which, as I recall, were 2.06" intake and 1.72" exhaust. 5) 1970 LS-5 cylinder heads were unique to that year.Jan 11, 2009 ... Just for reference, if it was a Mercruiser 454 Mag. it was 8.6:1 comp and 385 hp. in the configuration from them. IE: MPI intake, their exhaust ...Chevy 396 and 402: Engine by Engine Chevy L34, L35, L37, and L66 Engines – 396 Big Blocks. L34: Chevy produced the L34 from 1966-1969, and it made 350-360 horsepower. In 1966 it had four bolt mains, but switched two-bolts from 1967-on. It had oval port heads, 10.25:1 compression, high-lift hydraulic camshafts, and a high-rise …

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Apr 12, 2022 ... 730-HP BBC ON 87-OCTANE!! HOW TO: 700-HP BBC COMBOS (ALL MOTOR, LOW COMP 540, SC 454 & TURBO 454) · Comments100.What Is The Best Big Block Chevy Engine? The answer to this question depends on the application and the BBC engine specs you need. Regarding parts availability, the 454 engine has the most availability of parts in comparison to the other engine sizes. This is due to the number of blocks available for the 7.4 liter versus a 396, 402, 427, or ...All of the key engine specs and expert engine-upgrade advice and guidance you’ll need are only one click away. Gen. III LS Engine Upgrade Guides & Specs ... The 454 is a way better engine hands down. Reply. Kevin bowman says: November 21, 2019 at 11:04 pm. 454 swap to LS motor in a 1994 Chevy dulley c3500 cab in a half long bed. …454CI V8 Specifications and Technical Configurations. The 1970 LS5 featured a standard cast-iron block, which housed a forged-steel crankshaft, with a total …The 1984 Chevy 454 engine is a powerful V8 engine that was commonly used in trucks and motorhomes. Here are the key specifications of this engine: – Engine Type: V8. – Displacement: 454 cubic inches (7.4 liters) – Compression Ratio: 7.9:1. – Bore x Stroke: 4.25 inches x 4.00 inches.The 1985 Chevy 454 engine is a V8 engine with a displacement of 7.4 liters. It belongs to the big-block engine family and is known for its power and durability. The engine features an overhead valve (OHV) design with two valves per cylinder, totaling 16 valves. The 454 engine has a cast-iron block and cylinder heads, providing strength and ...1990 Chevrolet 1500 454 SS technical specifications and data. Engine, horsepower, torque, dimensions and mechanical details for the 1990 Chevrolet 1500 454 ...

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Base Price $ 8,799. The LSx 454ci competition short block uses a new Dart SHP Pro cast iron block with 4.185" bore and 4.125” Stroke to produce the large 454ci. The larger cubic inch of the LS 454 short block allows for more low end torque is a good foundation for higher horsepower applications. Reach Out Build Now.Detailed Engine Specifications. The 1989 Chevy 454 motorhome engine is a powerful V8 engine with a displacement of 7.4 liters. It belongs to the Chevrolet Big Block engine family and is equipped with electronic fuel injection (EFI) for efficient fuel delivery. The engine has a compression ratio of 8.5:1, providing a good balance between power ...Chevy 396 and 402: Engine by Engine Chevy L34, L35, L37, and L66 Engines – 396 Big Blocks. L34: Chevy produced the L34 from 1966-1969, and it made 350-360 horsepower. In 1966 it had four bolt mains, but switched two-bolts from 1967-on. It had oval port heads, 10.25:1 compression, high-lift hydraulic camshafts, and a high-rise …Engine Weight: Roughly 685 lbs; 454 Horsepower: Ranged from 230 hp to 450 hp; 454 Torque: Up to 500 lb-ft; As the 1970s progressed, the Chevy 454’s engine …Jan 16, 2001 ... Tech / General Engine - What's the stock HP and TQ rating on a 1977 3/4 ton pickup 454 big block? - Just wondering, figured it might have ...Jan 21, 2024 · The 1993 Chevy 454 engine is a big-block V8 engine that belongs to the Generation V family of engines produced by General Motors. It has a displacement of 7.4 liters (454 cubic inches) and features an overhead valve (OHV) design. The engine is equipped with a cast-iron block and cylinder heads, providing excellent strength and durability. Jan 30, 2024 · 1983 Chevy 454 Engine Specs Engine Configuration. The 1983 Chevy 454 engine was a part of the big-block engine family manufactured by General Motors. It was a V8 engine with a displacement of 7.4 liters or 454 cubic inches. This engine was commonly used in various Chevrolet vehicles during the 1980s, including trucks, vans, and recreational ... Find 1997 CHEVROLET 7.4L/454 Chevy big block Gen VI Engines & Components and get Free Shipping on Orders Over $109 at Summit Racing! Use your Summit Racing SpeedCard today, and get up to 10% back - Get Details! ... Engine, Bare Block, Big M Sportsman, Stock/OEM, 4.50 in. Bore, Cast Iron, 4-Bolt Main, 2-Piece Rear Main Seal, …Of the three versions produced, the LS6 version was the high-performance option for Corvettes, Camaros, and Chevelles. This package supplied 450 horsepower and 500 lb-ft of torque. The ’70 version of the LS6 454 was a pinnacle year as, by 1971, Chevrolet started to detune the engine. The block's dimensions and surfaces are carefully checked. ….

The Chevy 454 engine characteristics and specifications include being a 454 cubic inch big-block V8 engine that has grown to be an amazing potion for big trucks and classic vehicles. The engine is manufactured by Chevrolet, with the best lineup being the 1970 version of the 454 engines.Car Performance (Sae Net) : 325 hp @ 4800. 390 lb-ft @ 3600. This Vette can accelerate faster than 365 hp version and reach 13.7 Sec @ 107 mph. Reply 1.3k. 1971 Chevrolet Corvette Stingray 454 LS5 specs, performance data, engine specifications, pictures, updated October 2023.Order a Chevy LSX 454 crate engine online today. Our Chevrolet Small Block LSX 454 crate engines offer an impressive 627 horsepower and are equipped with the latest technology. Plus, the Chevy LSX 454 is lighter than its big block predecessor. ... LSX454 TECH SPECS: Engine Type: LSX-Series Gen IV Small-Block V-8; Displacement: 454ci …An even more powerful version, producing 465 hp (347 kW) and 610 lb⋅ft (827 N⋅m), of the 454, then dubbed LS-7 (not to be confused with the modern, mid 2000s, 7-litre Chevrolet Corvette engine that powered the C6 Z06, which is an LS7). Several LS-7 intake manifolds were individually produced and sold to the general public by a few Chevrolet ...Aug 20, 2019 ... 20:13. Go to channel · Building a 1100+ Horsepower Jon Kaase Big Block Ford - Engine Power S6, E5. POWERNATION•1.3M views · 12:14. Go to channel ...Detailed Engine Specifications. The 1994 Chevy 454 engine is a powerful V8 engine with a displacement of 7.4 liters. It offers a compression ratio of 7.9:1, delivering 230 horsepower and 385 lb-ft of torque. The engine features an overhead valve (OHV) valvetrain and utilizes sequential fuel injection for efficient fuel delivery.What Is The Best Big Block Chevy Engine? The answer to this question depends on the application and the BBC engine specs you need. Regarding parts availability, the 454 engine has the most availability of parts in comparison to the other engine sizes. This is due to the number of blocks available for the 7.4 liter versus a 396, 402, 427, or ...Apr 8, 2021 · Under the hood lies the namesake of the Silverado 454 SS. The 7.4-liter 454-cubic inch behemoth produced 230 horsepower with 385 lb.-ft of torque. This power was put to the pavement through a three-speed Turbo Hydra-Matic automatic transmission. Maximum torque was realized early in the power spectrum at only 1,900 rpm. 454 engine specs, 502 magnum. View and Download MerCruiser 454 MAGNUM manual online. 7.4L/8.2L. 454 MAGNUM engine pdf manual download. Also for: 502 magnum., The 454 cubic-inch LS4 would serve as one of General Motors’ final big-block powerplants, to take up residence beneath the Corvette’s hood. LS4 History. The …, Jan 11, 2009 ... Just for reference, if it was a Mercruiser 454 Mag. it was 8.6:1 comp and 385 hp. in the configuration from them. IE: MPI intake, their exhaust ..., Flywheel / Flexplate: Like all big block V8 engines, the ZZ454/440 engine has 3.58" diameter flywheel flange bolt pattern. This engine comes equipped with a 14" diameter flexplate with a 168 tooth ring gear, GM Part Number 10185034. If your application requires a flywheel, GM Part Number 14096987, should be used. , The 1985 Chevy 454 engine is a V8 engine with a displacement of 7.4 liters. It belongs to the big-block engine family and is known for its power and durability. The engine features an overhead valve (OHV) design with two valves per cylinder, totaling 16 valves. The 454 engine has a cast-iron block and cylinder heads, providing strength and ..., Flywheel / Flexplate: Like all big block V8 engines, the ZZ454/440 engine has 3.58" diameter flywheel flange bolt pattern. This engine comes equipped with a 14" diameter flexplate with a 168 tooth ring gear, GM Part Number 10185034. If your application requires a flywheel, GM Part Number 14096987, should be used., Other key features of this LSx 454 supercharged engine include a boost-ready design, forged rotating assembly, six-bolt cylinder heads and a hydraulic roller cam for reduced wear and friction. We also carry a 440ci LS7 edition that delivers the same jaw dropping 700 horsepower. Peak Horsepower: 725bhp @ 6700 rpm. Peak Torque: 580lb/ft @ 5200 rpm., 454 cid specifications standard displacement (liter/cid) 7.4l / 454 cylinders v-8 bore & stroke (inches) 4.25 x 4.00 compression ratio 8.4:1 fuel system 4 bbl holley ignition delco electronic full throttle operation (carbureted) 4000 - 4400 rotation (flywheel) (opposite rotation available on sportpac only) ccw/cw transmission - sportpac only ..., LS7 7.0L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More. Last updated on 05/06/2024. The LS7 is a Gen. 4, 7.0L, aluminum small block engine. It was available in GM’s high performance cars between 2006 and 2015. The LS7 is the largest displacement engine in the LS family. It is unique because it was …, Detailed specs and features for the Used 1991 Chevrolet C/K 1500 Series 454SS including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and ..., The 454 was the biggest engine Chevrolet ever bolted into a production passenger car and, in LS6-tune, it made effortless horsepower and torque. The LS6's iron block was outfitted with four-bolt main caps for added strength. Inside, forged-aluminum pistons and forged-steel connecting rods swung from a forged-steel crankshaft., Detailed specs and features for the Used 1993 Chevrolet C/K 1500 Series 454SS including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and ..., Mar 10, 2023 · A N.O.S. LS-7 454 big-block Chevy from 1979 runs for the first time at Westech Performance—read what happens! ... LSX, and Vortec Engines: Specs, History, Swaps, and More. Steven Rupp | Jan 22 ... , Apr 14, 2021 · The Chevrolet 454 LS6 Was The Peak Of GM Big Block V8 Performance. Slammed '62 Ford Country Squire Sporting a 900hp Diesel Swap. In 1970 the largest Mark IV motor arrived on the scene. Displacing 454 cubic inches it was first offered in the Chevrolet Corvette, producing up to 450 horsepower in ultra-rare LS6 specification. , Here are the detailed engine specifications of the 1980 Chevy 454: Engine Type. V8. Displacement. 7.4 liters. Compression Ratio. 8.2:1. Fuel System. 4-barrel carburetor., 454ci/7.4L Long Block Replacement Engine. 1974-93 GM Pickup/Van with VIN code L19, LE8. 1pc Real Seal. View Details. $7,081.99. Ships on 06/12/24. Lowest Price Guarantee. Add To Cart. Chevrolet Performance 454ci Truck Crate Engines., The 1990 Chevy 454 engine is a big-block V8 engine that belongs to the Chevrolet Mark IV engine family. It has a displacement of 7.4 liters or 454 cubic inches, hence the name. This engine features an overhead valve (OHV) design with two valves per cylinder, providing excellent low-end torque and power. The Chevy 454 engine utilizes a cast-iron ..., Specifications for the 1974 Corvette, including dimensions, electrical, capacities, engine, and features. All options are listed, including prices and quantities shipped. ... 270 Horsepower 454 Cubic Inch LS4 Engine 3.08:1, 3.36:1 (3.55:1 with M21 Transmission) Transmission Synchromesh All Four Gears Standard Fuel Tank Capacity, Engine Detail: International Harvester D-179: diesel: 3-cylinder: liquid-cooled: Displacement: 179 ci 2.9 L: Bore/Stroke: 3.875x5.0625 inches 98 x 129 mm: Air cleaner: dry Rated RPM: 2200 Starter volts: 12 Oil capacity: 8 qts 7.6 L: Coolant capacity: 12.5 qts 11.8 L, The 1976 Chevy Truck with its 454 engine remains an iconic choice for truck enthusiasts. Its impressive power, reliability, and durability make it a timeless classic. By following the recommended engine oil specifications and service intervals, you can ensure that your Chevy Truck’s 454 engine continues to perform at its best for years to come., Jan 20, 2024 · The horsepower output of the 1991 Chevy 454 engine was rated at 230 horsepower, while the torque reached 385 lb-ft. These specifications made it a capable engine for towing and hauling heavy loads. The valvetrain of the 454 engine was based on the Overhead Valve (OHV) design, which allowed for efficient airflow and enhanced combustion. , The Biggest Chevy Muscle Car Motor. When the 454 cubic inch engine appeared in the Chevrolet catalog in 1970, it was intended to rule the streets by building on the same Mark IV design architecture that had defined the 427 cubic in V8 that preceded it. The 454 maintained the 427's 4.25 inch bore, but it increased the stroke to 4 inches, and …, This engine, known as the LS5, produced 365 horsepower, an increase from the 360 horsepower produced by the same model in 1970. The famed LS6 454 from the 1970 Chevelle was initially said to be part of the 1971 model year, though none were put into any of the ’71 Chevelles. Since the 454 was the only engine that required an SS package, …, The 454 is based on the World Products' Motown iron block, and the biggest news about it, beyond the huge displacement alone, is the 4.250-inch bore. That's …, 1990 Chevrolet 1500 454 SS technical specifications and data. Engine, horsepower, torque, dimensions and mechanical details for the 1990 Chevrolet 1500 454 ..., The Biggest Chevy Muscle Car Motor. When the 454 cubic inch engine appeared in the Chevrolet catalog in 1970, it was intended to rule the streets by building on the same Mark IV design architecture that had defined the 427 cubic in V8 that preceded it. The 454 maintained the 427's 4.25 inch bore, but it increased the stroke to 4 inches, and …, For the record, this 13.1:1, naturally aspirated and single Dominator-fed big-inch LS engine is officially rated at 770 horsepower at a 7,000 rpm and 612 lb.-ft. of torque at 5,600 rpm. Those figures might be a little conservative. Notably, that’s a 50-horsepower increase over Chevrolet Performance’s own ZZ572/720R drag race crate engine ..., Detailed Engine Specifications. The 1994 Chevy 454 engine is a powerful V8 engine with a displacement of 7.4 liters. It offers a compression ratio of 7.9:1, delivering 230 horsepower and 385 lb-ft of torque. The engine features an overhead valve (OHV) valvetrain and utilizes sequential fuel injection for efficient fuel delivery., Flywheel / Flexplate: Like all big block V8 engines, the ZZ454/440 engine has 3.58" diameter flywheel flange bolt pattern. This engine comes equipped with a 14" diameter flexplate with a 168 tooth ring gear, GM Part Number 10185034. If your application requires a flywheel, GM Part Number 14096987, should be used. , Jan 24, 2024 · Proper engine oil is crucial for maintaining the performance and longevity of any engine, including the 1997 Chevy 454. Here are the recommended engine oil specifications and service intervals for this engine. Engine Oil Specifications: – Type: SAE 5W-30 or SAE 10W-30. – API (American Petroleum Institute) Certification: SG or higher. , Jan 30, 2004 ... didnt even look at the specs was $8000. my question was why is there almost$1500 differenc in the heavy duty truck motor and the rv motor. after ..., The Family Tree. Unlike lesser engines, the evolution of the big-block Chevy can be traced back to a prestigious great-great-grand pappy, the high-performance 425-hp L78 396, first available in 1965 Corvettes and Chevelles. Even though the big-block was destined to eventually find a home in trucks and family sedans, it started off as a serious ..., The 454 Big Block is a powerhouse of an engine, capable of providing up to 500 ft-lbs of torque. The torque specs for this engine depend on the year and type; however, most models have a maximum torque rating of 425 ft-lbs at 3800 rpm. This powerful engine can be found in many classic cars, including Chevrolet Corvettes and …