[JoeC]

The 427 425hp L72 engine was available in 66 to 69 full size Passenger cars. Except 1967. Not sure if it came in Impala and Biscayne every year but some years was both. Some say a few 425hp Passenger cars were built in 1967 but it is listed as not available. The COPO Camaro and Chevelle used this engine not the 69 Corvette engine which was the L71. L72 was not avaiable in Corvette in 1969. Motion sold the 425 hp Passenger cars as his economy hot rod. They were a little fat but still ran in the 12's.