Displacement 347 ci V8 370 ci V8 389 ci V8 421 ci V8 Maximum Power 290 hp 310 hp As its sister brand Chevrolet did its best ...

The 326 was the inaugural base engine for the Pontiac Firebird's debut, supplying it with 250 horsepower, which was impressive at the time. The 421 would become renowned after being used by Joe ...

Prices shown are the prices you can expect to pay for a 1958 Pontiac Bonneville 2 Door Convertible Tri-Power (*) across different levels of condition. Edit options.