What was the compression ratio for a Chevy 396?

In 1967, Chevrolet produced two 396 V8s. One generated 350 horsepower with a compression ratio of 10.25:1, and the other was a 375-horsepower engine with an 11:1 compression ratio. In its final year (1969), the 396 received a two-barrel carb and a reduced 9:1 compression ratio, which delivered 265 horsepower.

When did the Chevy 396 engine come out?

Chevrolet developed its big block 396-cubic-inch V8 engine in response to the big engines powering the Oldsmobile 4-4-2 and Pontiac GTO. Beginning in 1965, the 396 engines powered Chevelles, Corvettes and El Caminos. Chevy phased out the 396 in 1969.

How much horsepower does a 396 Chevy big block have?

With a four-barrel carb, it produced 375 horsepower and 420 ft.-lbs. of torque. The L-79 396 featured 425 horsepower and 415 ft.-lbs. of torque.

What was the displacement of the Chevy 396 in 1970?

Worth noting, for the 1970 model year Chevrolet increased the 396’s displacement to 402 cubic inches using the same increase in bore Hot Rod did for their test. So the L78 396 for 1970 was a 402 V8. The same was true for all other versions of the 396 for 1970. Chevrolet kept the “396” moniker instead of changing it to correct “402”.

When did the Chevy L78 396 V8 come out?

The L78 396 made its first appearance during the middle of the 1965 model year in the Chevrolet Corvette and full-size Chevrolet models. Its output was factory rated at 425 gross horsepower and 415 lb-ft of gross torque in 1965. The L78 396 after 1965 would never again be available in the Corvette or any full-size Chevy model.

With a four-barrel carb, it produced 375 horsepower and 420 ft.-lbs. of torque. The L-79 396 featured 425 horsepower and 415 ft.-lbs. of torque.

What was the compression ratio for a Chevy 396?