Pontiac introduced the Firebird in 1967 to compete with the Ford Mustang, Chevy Camaro ... to 1969 and was a higher RPM performer than the incoming 455, which is one of the largest engines ...

See All 22 Photos Currently, the Mustang is powered by a Boss 429-based 185-series 557-inch big-block Ford V-8 engine ... and working on my latest car, a 1969 Camaro called Tri Tip.

Although it used a crate motor for over two decades, this 1969 COPO Camaro now features its numbers-matching L72 V8 mill.