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Chevrolet LT-1
The LT-1 was a Small-Block engine produced by Chevrolet between 1970 and 1972. It was available exclusively in the sport (Corvette) and pony (Camaro) lines and was produced in relatively low quantities. It is regarded today as one of the greatest Chevrolet Small Blocks, an engine that has been in production since 1955.
==History==
Chevrolet introduced the 350 cubic inch LT-1 in 1970, making it available in both the Corvette and Camaro. In the Camaro, the engine was available only through the Z/28 option. It was the first year that the Z/28 option consisted of a 350 cubic inch engine, as between 1967 and 1969 the option gave a 302 cubic inch motor. The LT-1 was also available in the Corvette both as an engine option and as part of the high-performance ZR1 option. Between 1970 and 1972 only 53 ZR1s were produced, making it one of the rarest Corvettes. The LT-1 had an 11.0:1 compression ratio, Holley 780 cfm 4-barrel carburetor, and solid lifters. For the first year the LT-1 was rated at 370 horsepower in the Corvette and 360 in the Camaro. Despite the disparity in ratings, there was no difference between the engines.
In 1971 the compression ratio was decreased to 9.0:1 and horsepower decreased to 330, now the same in Corvette and Camaro. A net horsepower rating of 275 was also given. In 1972 the rating decreased again, now to a net of 255. Gross horsepower was not given in 1972.
In 1970 a Nova could also be ordered with an LT-1 via a Central Office Production Order (COPO). Fifty of these were ordered by Don Yenko at Yenko Chevrolet and were converted into Yenko Deuces. Yenko also converted another 125 L65 Novas into LT-1 Deuces. Another two COPOs were ordered by Central Chevrolet-Oldsmobile in London, Ontario, and were left as-is.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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