The 421 Super Duty engine was introduced at the end of the '61 model year. Basically an enlarged 389 Super Duty, the components were shipped to factory-backed racers to make Pontiac an even greater on ...

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 ...

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 ...

When talking about muscle cars, we usually think about high-performance midsize vehicles produced during most of the 1960s and the early 1970s. And that's alright, but we also need to remember that ...

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