165 hp (123 kW) and 255 ft·lbf (346 N·m). [ edit ] L46 Years: 1969, 1970 The L46 was an optional engine on the 1969-1970 Chevrolet Corvette . It was a 350 hp (261 kW), 380 ft·lbf (515 N·m) version of the ZQ3 with higher 11:1 compression. [ edit ] LT-1 LT-1