May 2, 2024 · Pontiac joined the American big block V8 rivalry with its rare 421 Super Duty engine, showcasing its dominance on the track in the early '60s. The high-revving 421 V8 boasted …

Aug 29, 2024 · Pontiac screwed up earlier with the '65 and '66 blocks giving thin wall casting a go, but after warranty claims went through the roof they abandoned the idea and the 1967 block was one of …

A forum community dedicated to Pontiac GTO owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, history, and more!

A forum community dedicated to Pontiac Solstice owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, trade parts, and more!

May 11, 2024 · There have been some ramblings going on lately regarding Pontiac's return to the Automotive industry. I've seen many false claims and click bait over the last twelve years. All crapola. …

Feb 14, 2016 · I put together the specs on the factory-installed GTO camshafts for the 389/400/455. They are often referenced by their last part number digits, ie "066," "067," "068," etc. They go from …

May 29, 2023 · The "46" heads were most likely installed to drop compression. Pontiac used the same flat top piston in all their engines and used the combustion chamber size to change compression …

Jul 25, 2024 · The recommended Crower 60917 cam is about the same size as the stock Pontiac 067 grind which was used in the standard horsepower GTO's so you are good with the cam (Pontiac …

Jan 21, 2023 · I am going to be having access to some Pontiac parts and these heads are among them.

Dec 27, 2021 · Obviously, not all my Pontiac Stock/SS pics are of GTO's. I assume it's OK to include other Pontiac A-bodies, like Lemans, T-37, Lemans Wagons, & '74 Venturas, along with the GTO's ? …