The Pontiac 421 Tri-Power was a standout engine during the golden age of muscle cars, known for its impressive performance and unique design. Enthusiasts and collectors continue to admire its ...

Last month HPP introduced to the readers a '64 421 H.O. Tri-Power engine buildup being performed by Jim Taylor. The goal of the project is to try and find 100 additional horsepower in a cast-iron ...

In the beginning, muscle was measured by sheer displacement. Detroit’s golden age hadn’t yet found its shape, but the air in the early 1960s was thick with rebellion. Before Pontiac’s GTO broke the ...

If your idea of a perfect time is Pontiacs, Pontiacs, and more Pontiacs, there was only one place to be on August 3-5, 2012, and that was the 21st annual Ames Performance Tri-Power Pontiac Nationals ...

Introduced for the 1964 model year, the Pontiac GTO is credited with popularizing the muscle car segment. While this statement isn't widely accepted, there's no denying that the GTO is one of the ...