What engine designed to power medium duty trucks and heavy cars was also used in Chevy's intermediate and pony car?
Chevrolet L72:  In 1969 the L72 was available via a Central Office Production Order (COPO) in Chevrolet's intermediate (Chevelle) and pony car (Camaro). Chevrolet Big-Block engine: The Chevrolet "Big Block" is a term for a series of large displacement V8 engines that have been developed and produced in the United States from the 1950s to the current day.
i don't know