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.

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.

How much horsepower does a Chevy 454 big block 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 454 big block 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 is a rebuilt 454?

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.

How much power can a 454 block handle?

That means a 454 can support almost 600 hp (454 x 1.3 = 590.2). Indeed, many do. Using the same multiplier, a 496 can support 645 hp.

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.

How much power can a 454 make?

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 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.

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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 much does a stock 454 weigh?

So with cast iron heads the engine would be about 580 lb. There is an oft-quoted figure that claims a Chevy Big Block weighs 680 lb. This must have included a cast iron intake manifold, cast iron exhaust manifolds, and probably a carburetor.

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.

What motor is a 454?

The Chevrolet 454-cubic-inch, or 7.4-liter, V-8 engine was a brawny gas-guzzling powerplant that should have died an ignoble death after the 1973 fuel crisis. Yet it survived to become a workhorse and father of the 8.1-liter 8100 Vortec V-8. Its uniqueness was in its versatility.

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 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 454 SS truck have?

EngineBase engine size7.4 lBase engine typeGasCylindersV8Horsepower230 hp @ 3,600 rpm

How much gas does a 454 boat engine use?

Select MerCruiser Test ModelHPFuel consumption WOTMerCruiser 5.7 L – 350 cid260 hp21.0 GPHMerCruiser 5.7 MAG – 350 cid300 hp23.0 GPHMerCruiser 6.2 MAG – 377 cid320 hp24.5 GPHMerCruiser 7.4 MPI – 454 cid310 hp28.5 GPH

How much HP can a big block handle?

Builders say a stock Gen V block will handle 650 to 750 hp, depending on pump gas or race gas, and a two-bolt main limited to around 600 hp.

How can I get more power out of my 454?

1. Improve the fuel and air intake system. …
2. Replace the stock exhaust system with a high-flow system. …
3. Replace the stock timing parts with ones tuned for racing. …
4. Bolt on a supercharger.

How much horsepower can a 400 block handle?

With our low-compression, power-adder friendly 400-inch small-block easily exceeding 525 hp, it was time for some boost. And that’s where things start to get very interesting.

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.

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.

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 big can you stroke 454?

Take a 454, add a 4.250-inch stroke crank along with some 6.385-inch rods and your displacement shoots up to 489 cubes.

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.

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.

Is a 6.0 A big-block?

The 6.0 is a LS engine, but in actuality it is a small block. Another generation of GM’s Smallblock.

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.

What does 4 bolt main mean on an engine?

Four bolt mains. What holds your crankshaft in place are the main caps which also hold the crankshaft bearings. A 2-bolt cap is fastened to the block by 2 bolts, and a 4-bolt cap has 4 bolts (2 on each side). When you increase the load on the crank, you also increase the load on the main caps.

What determines if an engine is a big block?

Typically, big-block engines have displacements of greater than 400 cubic inches and small block engines have a smaller displacement. … The Chevy 396 engine is an example of an engine that has a displacement under 400 cubic inches but is considered a “big block” due to its architecture.