![1965-1970 Chevrolet L78 396 V8 - Best Vintage High Performance V8?](https://i.ytimg.com/vi/CFopXN2KrPc/hqdefault.jpg)
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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.
Early Years
Chevy developed three versions of the 396 in 1965: a four-barrel carburetor model, the Z-16 with a high compression ratio (also produced in 1966) and the L-79, which was only produced for 1965.
Specifications
The four-barrel carburetor version had a 4.094-inch bore and 3.76-inch stroke. It had a 10.25:1 compression ratio to wield 325 horsepower and 410 ft.-lbs. of torque. The Z-16, produced only for Chevelles, had a high compression ratio of 11:1. 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.
Later Years
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.