The 421 was officially rated at 405 horsepower, but a Motor Trend road test found the engine's output to be around 60hp more ...

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 ...

The car was offered with massive engines, including a 421 HO producing 376 horsepower, but the GTO madness was too much to handle. The Grand Prix continued to lose popularity in the next few years ...

Engine issues ... as limited as some of Pontiac's rarest muscle cars, it's still a small enough run to push prices well into five figures when these come up for sale. Even 400 cubic inch Grand ...

These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle.

Between 1971 and 1976, the biggest Pontiac engine ever installed in passenger ... four other classic General Motors products listed for sale) but claims the mileage is backed by documents.

You can still find cheap, V6-powered SUVs in 2024 - this is the most affordable, the most fun, and the most likely to get you ...

For a mere $650, exchange, Royal will snake out that overworked little engine in your GTO and slide in the 428, all prepared for action. And now, speed-crazed sports fans, Roy­al Pontiac has ...

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These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle.