Corvette Engine ID

L36 - 390 hp version of 427, used 1966 - 1969

L46 - 350 hp version of the 327 from 1965-1968.

L48 - Base engine in Corvettes from 1972-1979.

L68 - 400 hp version of 427 in Corvettes from 1967 to 1969.

L71 - 435 hp version of 427 from 1967-1969. The L71 used three 2 bbl Holley carbs on a low rise (almost flat) manifold with a triangular shaped air cleaner.

L72 - 425 hp version of 427 in 1966.

L75 - 300 hp version of 327 in 1963 to 1965 with a hydraulic cam.

L76 - 340 hp version of 327 in 1963, 365 hp version in 1964 and 1965. These had solid lifter cams.

L78 - 425 hp version of the 396 used in 1965 Corvettes.

L79 - 350 hp version of the 327 from 1965 to 1968 with a hydraulic cam.

L82 - 350 hp motor used in the 70s up 'til '81.

L83 - The L83 is the base, and only engine, in the '82 and '84 Corvettes.

L84 - The fuel injection engine in the Sting Ray.

L88 - 430 hp version of the 427. The factory race engine from 1967-1969. With this option, the radio and heater were deleted.

L89 - An aluminum head option on the L71 435 hp engine from 1967-1969. Correctly, it is the L71-L89 engine.

L98 - Engine used from 86 until the LT-1 came out in '91.

LPO - Limited Production Option

LS1 - 350 in the C5 Corvettes. It is a new design from the old small blocks.

LS5 - 454 in 1970-1972 Corvettes, rated at 390 hp in gross hp in 1970, 365 hp in '71, and 270 hp SAE Net in '72.

LS6 - 454 only available in '71 in Corvettes as a 425 hp version with aluminum heads.

LT1 - High performance engine option for 1970, 1971 and 1972. Also redesigned base engine starting in 1992.

LT5 - High Performance engines for the 1990-1995 ZR-1. Built by Mercury Marine