In the 1960s, those in the know would nod approvingly if they saw a simple “421” badge on the fender of an unassuming Pontiac. Those three simple numbers told them that this full-size family hauler ...

Introduced in 1960, the Super Duty V8 engine turned the Pontiac Catalina into a worthy NASCAR and drag-racing competitor. In 1962, Pontiac debuted a larger, 421-cubic-inch (6.9-liter) version of the ...

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 ...

Pontiac began in the 1920s as a brand that helped define General Motors' mid-tier strategy. Over the years, it gained a reputation for building sturdy and powerful engines that have left an ...

Pontiac has made some really cool cars over the years, such as the GTO, Bonneville, and Firebird. But while there are many underappreciated Pontiac muscle cars, when people talk about what makes ...

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 ...