Pontiac joined the American big block V8 rivalry with its rare 421 Super Duty engine, showcasing its dominance on the track in the early '60s. The high-revving 421 V8 boasted impressive specs ...

Despite these impressive specs, the engine and vehicles it ... There were several things that made the Pontiac 421 Super Duty engine so impressive. It had a heavy-duty cast iron core and was ...

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 ...

However, how many wagons have you seen coming from the factory with the most powerful engine available? Enter Pontiac’s Bonneville Safari 421 Tri-Power High-Output of 1965. 1965 was the year ...