Not to be confused with the Coyote V8 we have nowadays, the 5.0 High Output (HO) was pretty impressive from the factory but the aftermarket turned this engine into a legend. To this day, restomodders ...
The 455 HO was the icing on the GTO cake in 1972, with the engine producing 300 horsepower (this was the net rating, as Pontiac now aligned with the new requirements in the United States for engine ...
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