How much horsepower does a 454 stroker engine have?

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 does a 454 stroker 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 much HP does a 496 stroker have?

On 104-octane, the 496 pumped out 671 hp at 6,600 rpm and 586 lb-ft at 5,200. Impressive, yes! However, we were curious to see the results on pump gas.

585 Lb-Ft & 672 Hp For The Strip.

BASELINE
PEAK TORQUE 581
Bore x stroke 4.310×4.250
Displacement 496 ci
Head gasket thickness 0.041

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.

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How much can you stroke 454 blocks?

That’s because the classic, Mark IV big-block is limited to about 0.100-0.125-inch maximum overbores. On a 454ci engine with a stock, 4.00-inch stroke, a 0.100-inch overbore delivers a 476-inch displacement, while a 0.125-inch overbore will give you a 481-inch Rat.

How much horsepower does a cam add to a 454?

The 454 responded very well to the cam upgrade, as the peak numbers jumped from 376 hp and 482 lb-ft with the stock cam to 428 hp and 507 lb-ft of torque. An increase of 52 hp is always welcome, especially when it comes with a sizable jump in peak torque.

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 454 big block put out?

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.

Is a 427 A small or big block?

The largest-displacement small-blocks ever produced by GM are the LSX454/LSX454R crate engines offered through Chevrolet Performance, at 454 cubic inches (7.4L); the largest-displacement small-block for a production vehicle is the 427-cubic-inch (7.0L) LS7 used currently in the Corvette Z06.

What is a Vortec 8100?

The General Motors Vortec 8100 V8 was introduced in 2001 fullsize Chevy and GMC pickup trucks, RVs, vans, and SUVs as an alternative to the then-new Duramax diesel for customers seeking maximum hauling capability without the sourcing hassles and cost of diesel fuel.

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How far is a 454 bored?

They can safely be bored to 4.500 inches, which, even with the stock 454/502’s 4-inch-stroke crank, yields a displacement of 509 ci.

How much HP does a Chevy 572 have?

The 572 offered from GMPP is designed as a 4.560-inch bore by 4.375-inch stroke combination using rectangle-port aluminum heads on a tall-deck Gen VI block.

This 572-Inch Crate Engine Look-Alike Rocks Out On Stage To The Tune Of 845 hp On Pump Gas.

BY THE NUMBERS
572ci Big-Block Chevy
Stroke: 4.375 inches

How much does it cost to build a 496 stroker?

Build A Pump-Gas 496-Cube Stroker Big-Block On A $5,500 Budget.

WHERE THE MONEY WENT
Part: Source: Price:
Eagle 496 stroker kit Eagle $1,249
Cam bearings Summit/Clevite $21.95
Flat-tappet camshaft COMP $165.69

How much horsepower does a stock 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.

What is a 496 stroker?

The 496 stroker HP high performance crate engine includes forged pistons, 4340 rods and HP aluminum heads so you don’t have to give up quality to get a big block at an economical price. This engine requires at least a 3000 stall converter if using an automatic transmission.

Can you stroke a big block?

The good news is that almost all 454 and 502 blocks accept a stroke increase of up to 4.5 inches, which is a 1/2-inch increase. If you opt for a forged crank, you should go for the longer-stroke crankshaft because the price difference between a 1/4-inch stroker and a 3/8- or 1/2-inch stroker is virtually nil.

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