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How much horsepower does a 454 cubic inch engine have?

How much horsepower does a 454 cubic inch engine have?

Not all factory production heads are suited to high horsepower production; however, there are several choices available from aftermarket vendors. Generally speaking, a head with 290 to 320 cc intake port volumes will allow high RPM airflow and maximum horsepower outputs in a 454-cubic inch engine.

What was the horsepower of a 1970 Chevy 454?

The 1970 production models of the 454 put out the most horsepower with the LS5 claiming 360 horsepower and the LS6 putting out a mighty 450 horsepower.

When did Chevy stop making the 454 engine?

Unfortunately the Chevy 454 was the right engine at the wrong time. Uncle Sam started to tighten down on emission controls in 1971 which affected a lot of the power of the 454. Another big blow for the 454 was the gas crisis of 1973 which pretty much sealed the fate for the motor during this period.

How much does a Chevy 454 V-8 engine cost?

The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. Topping the engine is a borrowed four-barrel Holley XP carburetor. The bill: $3,699.96 for all but the carb. The results: 567 horsepower and 537 pound-feet of torque on 89-octane pump gas!

What kind of gas mileage does a Chevy 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.

Not all factory production heads are suited to high horsepower production; however, there are several choices available from aftermarket vendors. Generally speaking, a head with 290 to 320 cc intake port volumes will allow high RPM airflow and maximum horsepower outputs in a 454-cubic inch engine.

The 1970 production models of the 454 put out the most horsepower with the LS5 claiming 360 horsepower and the LS6 putting out a mighty 450 horsepower.

Unfortunately the Chevy 454 was the right engine at the wrong time. Uncle Sam started to tighten down on emission controls in 1971 which affected a lot of the power of the 454. Another big blow for the 454 was the gas crisis of 1973 which pretty much sealed the fate for the motor during this period.

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Ruth Doyle