Catalina Super Duty 155 Grand Prix Super Duty Pontiac's 421 Super Duty is a 6.9-liter naturally aspirated V8 engine, built with a cast iron block and head design. The engine used a 4.09-inch bore ...

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 ...

Catalina 2+2 was the full-size performance model from Pontiac, and it made big waves when it tested quicker and faster than a ...

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 ...

by purchasing a 1963 Pontiac Catalina convertible. Why the Catalina? With a 421-cubic-inch Super Duty V-8 under the hood, its high-compression design and 6,400-rpm redline gave it 410 horsepower ...

Prices shown are the prices you can expect to pay for a 1964 Pontiac GTO 2 Door Coupe Bobcat (421) across different levels of condition. Edit options.

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