Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Naturally, the truck-based 454s were tuned for torque, so having nearly 500 pound-feet wasn’t a big surprise. But like any stock engine, there was tons of power left to be squeezed out.
How much horsepower can a 454 take?
In staying with the standard bore/stroke combination of 4.25/4 inches, however, it is not uncommon to yield power outputs of greater than 650 horsepower from the 454 in race engine configurations.
How strong is a 454 engine?
The revised 454 (now known as the Vortec 7400) was good for a whopping 290hp and 410 lb-ft of torque, and it was offered until 2001 (the final year for commercial and recreational vehicle use).
Which is better a 454 or a 350?
In a light to medium weight car, a 350 will probably offer you the happiest experience, especially in a daily driver role. In a truck, the 454 will probably feel better to your foot. In an all out performance car, the 454 will probably be more likable as long as the car is a straight line car (drag racing etc).How can I make my 454 faster?
- Improve the fuel and air intake system. …
- Replace the stock exhaust system with a high-flow system. …
- Replace the stock timing parts with ones tuned for racing. …
- Bolt on a supercharger.
Is the Chevy 454 a good engine?
The 454 big block is a very good engine to go with if you are looking for something that can output a lot of power, and fit in a lot of classic cars and trucks. This is a classic engine from Chevrolet and stock it makes great power from the factory, if you upgrade it you can get even more out of it.
How much does a 454 big block cost?
925 hp from 454 ci. As crate engines go, GM Performance Parts’ 454 H.O. crate engine is not only a bargain at its street price of around $4,600, its forged crank, pistons, and rods also make it capable of handling nearly as much power as you’re capable of throwing at it.
Is a big block faster than a small block?
Big block engines are larger in size and weigh more, but they produce more consistent power and torque to overcome the weight. Small block engines are smaller for better acceleration and handling, but more recently built models can be just as powerful as big block engines.How many miles per gallon does a 454 get?
The 454 is a big-block carbureted engine found in most older model Chevrolet cars and trucks. The engine uses eight cylinders to provide high-end torque and speeds. The combination of larger bore and eight cylinders equates to very poor gas mileage. The engine runs an average of 10 to 15 mpg.
Is the Chevy 7.4 a good engine?The 1996-2000 L29 7.4L big blocks are great engines. Much more dependable and durable than the 6.5L diesel of that era. L29’s had multiport sequential fuel injection, all of the latest sealing technology to prevent oil leaks and the “Vortec” style heads flowed very well.
Article first time published onHow long will a 454 engine last?
454 will run 200k with the right oil.
What is a Mark IV 454?
In 1970, the Mark IV was treated to a 0.24-inch bore job, taking it out to 4.00. With the 4.25 stroke unchanged, the new engine displaced 454 ci. … This is the engine that never was, at least in production form. It’s the LS7, and it was destined for the ’70 Corvette.
How much HP does a 383 stroker have?
The 383 stroker engines have been reported to achieve 330 horsepower with 410 foot-pounds of Torque, 395 horsepower with 410 foot-pounds of Torque and 395 horsepower with 410 foot-pounds of Torque.
How much HP does a 496 stroker have?
GM 496 Stroker Base Engine Aluminum Heads Roller Cam HP & Torque: 575 HP / 570 FT LBS – American Powertrain.
How much is a 454 rebuilt?
A 454 that’s needs a complete rebuild from a junk yard for a few hundred dollars or less. A turn key you can expect to pay for performance a street engine for a car or truck about $5,000 to factory high performance around $15,000.
What size motor is a 7.4 liter?
The 7.4L (454 cubic-inch) V8 was a big-block engine manufactured by the Chevrolet Division of General Motors starting in 1970. It was the second-largest Chevy production engine after the 8.2L, or 502 cubic-inch motor.
Does Chevy still make 454?
The Chevrolet 454 was eliminated from most passenger cars by 1975 but remained a viable powerplant in heavy-duty Chevrolet trucks through 1996.
How much horsepower does a 454 SS truck have?
EngineBase engine size7.4 lBase engine typeGasCylindersV8Horsepower230 hp @ 3,600 rpm
How much horsepower does a 1995 454 have?
Performance. The 454 produced 425 horsepower, had a compression ratio of 9.6 to 1 (an engine’s maximum volume compared to its minimum), a maximum rpm of 5,500 and an ignition timing of four degrees before top dead center.
Which Chevy big block is the best?
- 396 L78. This is the original factory big block Mark IV engine from Chevrolet. …
- 427 Tri-Power. The 427 big block was introduced as a production engine in 1966 for full-sized Chevrolets and Corvettes. …
- 454 LS6.
How fast is a 454 SS?
0 – 60 mph7.1 s0 – 100 mph22.5 s1/4 mile15.7 s @ 87.0 mphTop speed193 kph (120 mph)Lateral acceleration0.79 g (8 m/s²)
How much horsepower does a 77 454 have?
Early Truck 454s In 1977, General Motors offered special trailering packages for its Chevys and GMC trucks, including the 1-tons. These 454s with four-barrel carburetors developed 230 horsepower and 360 foot-pounds of torque.
How much torque does a 454 have?
The 454 EFI version was rated from 230 hp (172 kW) to 255 hp (190 kW) and from 385 lb⋅ft (522 N⋅m) to 405 lb⋅ft (549 N⋅m) of torque.
Is a 383 A big block?
The 383 Chrysler B engine is known as the Mopar big block that nobody loves. Typically, gearheads favor its beefier big brother, the 440. The 383 B is characterized by its large cylinder bore of 4.25 inches with a short stroke of 3.375.
How much horsepower does a 455 rocket have?
Factory horsepower ratings ranged from 310 all the way up to 400 ponies, with 500 lb-ft the most common torque figure. The Cutlass would benefit from the hottest versions of the 455, starting right out of the gate with 1968’s Hurst/Olds, a 390hp special model with a more aggressive camshaft and carb setup.
Did Chevy make a 400 big block?
If you mean Chevrolet, the answer is no. There was a 400 small block, and big blocks whose displacements were 409 (predecessor to the MK IV big blocks), 396, and 402.
How much horsepower does a 1978 454 have?
The 454 engine produced about 230 horsepower and 360 foot-lbs. of torque.
How much horsepower does a 1997 454 have?
The 7400 Vortec V-8 GM engine has 454-cubic inches and was rated at 290 horsepower at 4,000 rpm. It had 410 torque at 3,200 rpm.
What liter is a 454?
For many years the 454 (7.4-liter) V8 was the top choice from GM, while Ford had the mighty 460 (7.5-liter) V8. In 1999, Ford put the 460, out to pasture when the 6.8-liter V10 was introduced in the new Super Duty pickups.
What year did the Vortec 454 come out?
The Vortec 454, also referred to as the Vortec 7400, was designed as a big-block engine for light-duty trucks. General Motors manufactured this engine in 1996, but upgraded to a different model engine five years later.
What year is a Gen 5 454?
Here’s a pristine Gen V 454 from a 1990 Chevrolet 454SS pickup. Gen V, introduced in 1991, included a superior one-piece main rear seal, new oiling passages closer to the cam, and all blocks received four-bolt mains.
