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 issue, we got up close and personal with Scott Tiemann's 389 Tri-Power engine from the '65 GTO his parents bought new at Detroit's legendary Royal Pontiac. The car has always been in the Tiemann ...

The 1965 GTO sits at the center of muscle car mythology, and its engine choice still fuels debate. Collectors weigh the bragging rights of the factory Tri-Power setup against the everyday usability of ...

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 ...

The GTO wasn’t a car. It was a door kicked open. Pontiac detonated the muscle-car movement by ignoring GM’s “no big engines in mid-sizes” policy and stuffing a 389 into the polite little Tempest.

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 ...