Pontiac Fiero 1980. Those heads have very small valves and would be a bottleneck o

Those heads have very small valves and would be a bottleneck on a larger performance engine. . The Pontiac mechanics on JustAnswer can diagnose problems for all Pontiac models, from the Pontiac Firebird to the Solstice. Pontiac used the same flat top piston in all their engines and used the combustion chamber size to change compression ratio's. I've seen many false claims and click bait over the last twelve years. Come join the discussion about performance, modifications, troubleshooting, maintenance, history, and more! 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 the beefiest blocks produced. 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. Following GM's latest market gains in the last couple years, this time I'm not so sure. 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 the beefiest blocks produced. 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. All crapola. It has a high overlap cam which is supposed to help a little. Despite some A forum community dedicated to Pontiac Solstice owners and enthusiasts. A forum community dedicated to Pontiac GTO owners and enthusiasts. The heads have a casting date of K24 which would be November 2, 1964 making it a 1965 head, and I agree that the casting number says those heads were originally on a 326 engine. 5:1 and in order to run 92 octane I have to retard the timing to the point the car does not run well and drive very conservatively. The compression is about 10. Assuming you do have the correct "48" heads for your engine, there appears to be 2 different chamber volumes - 1 for the 350HO and the other for the RAIII. Nov 23, 2022 · Pontiac was really fond of the WT code and used it in multiple years. Or I can run May 29, 2023 · The "46" heads were most likely installed to drop compression. You can even ask follow-up questions, and approve payment only when you're completely satisfied. What do you think? Aug 26, 2023 · The Final Pontiac is a 2010 G6 painted in white and it was located by the historians of the Pontiac Transportation Museum. A week ago, the museum published a video about this car, which has a VIN ending in 963, making it a later production example than the prior two vehicles believed to be the last ones . Come join the discussion about performance, modifications, troubleshooting, maintenance, history, and more!. Jul 25, 2024 · I have a 66 gto with a 69 400 and ram air 3 heads in it. The high-revving 421 V8 boasted impressive specs, producing 468 hp and bolstered Pontiac's racing reputation against rivals Ford and Dodge.

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