Pontiac’s big-body Catalina became a serious performance threat when engineers slipped the 421 High Output V8 under its broad ...

Pontiac made more than its share of classic muscle cars during the brand's run from 1926 through 2009, including the classic GTO. Two Pontiac badges that don't often get listed with the GTO, Firebird, ...

In 1961, Pontiac did a number on its Detroit-wide rivals and put out the 421-cubic-inch Super Duty V8. The 6.9-liter motor became the name to beat at the track and strip, so in 1962, the National Hot ...

To most hobbyists, the term "421 Super Duty" conjures up thoughts of a stripped-down Catalina ruling the high banks of Daytona or the finish line of the nearest dragstrip. But rarely is the engine ...

The world of racing has been forever transformed by the introduction of big-block engines. These powerhouses have not only dominated the racetrack but have also become iconic symbols of automotive ...