GM LT1 engine
General Motors has produced three different engines called LT1:
 1970–1972 LT-1 – Chevrolet Generation I Small-Block
 1992–1997 LT1 – GM Generation II Small-Block
 1996 Chevrolet _small-block_engine#LT4 - GM Generation II Small-Bock  - Single year offering of this engine in the Corvette
 2013–(current) LT1 - GM Generation V Small-Block. LT4 is designed for use in the Z06 version of the Corvette, and the ZL1 version of the Camaro.