400 block casting numbers | Pontiac GTO Forum
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 …
The Rarest Pontiac Engine Ever Produced | Pontiac GTO Forum
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 …
Pontiac Solstice Forum
A forum community dedicated to Pontiac Solstice owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, trade parts, and …
Is Pontiac coming back?!?!? - Pontiac GTO Forum
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 …
The True Last-Ever Pontiac Has Been Found, And...
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 …
Pontiac Problems? Ask Pontiac Repair & Troubleshooting Questions
The Pontiac mechanics on JustAnswer can diagnose problems for all Pontiac models, from the Pontiac Firebird to the Solstice. You can even ask follow-up questions, and approve payment …
- Reviews: 1
400 Pontiac heads | Pontiac GTO Forum
Nov 23, 2022 · Pontiac was really fond of the WT code and used it in multiple years. The heads have a casting date of K24 which would be November 2, 1964 making it a 1965 head, and I …
Heads: 46 vs 6x-4 vs aluminum and MPGS - Pontiac GTO Forum
Jul 25, 2024 · I have a 66 gto with a 69 400 and ram air 3 heads in it. The compression is about 10.5:1 and in order to run 92 octane I have to retard the timing to the point the car does not …
#46 heads to #48 heads? - Pontiac GTO Forum
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 …
Pontiac GTO Forum
A forum community dedicated to Pontiac GTO owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, history, and more!