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 ...
28 Apr 2025, 14:29 UTC · By: Ciprian Florea // If you're a fan of lesser-known Pontiacs, this 1960 Ventura is definitely worth checking out. It has the mighty 389 Tri-Power under the hood. 12 Mar 2025 ...
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 ...