Aug 19, 2022 · There are several web sites that have reference information to help you identify Pontiac engines and heads. It's always a good idea to check multiple sites and cross reference your code …

Jul 10, 2014 · In the May 2004 issue of High Performance Pontiac, Dr. Eric M. Schiffer (President of Royal Pontiac Club of America, at that time frame) talks about what the X means on a 1965 GTO …

May 11, 2022 · Almost ready to put this 65 389 4bbl on the road. Was curious if anyone could clue me in on engine oil capacity and weight. Also conventional or synthetic oil?

Feb 26, 2009 · On my 65 Tempest there is a push button start wired in with heavier gauge wiring to prevent the hot starting problem. I'm a little confused on the wiring. Currently the car isn't charging. It …

Dec 31, 2023 · I have an early 66 GTO with factory 389 and 3 speed Dearborn. Here is what I have so far: Upper tubular control arms 4* caster Lower tubular control arms stock caster UMI upper ball joint …

Mar 23, 2025 · A forum community dedicated to Pontiac GTO owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, history, and more!

Dec 15, 2009 · Hi Guys am very new to this forums .. I bought 1965 GTO but when i showed it to a GTO expert he told me that it is Lemans but the vin is 65-23737-pon can u please help me with decoding …

Apr 7, 2017 · Trying to figure out if this is a Pontiac rear and if so, what is the differential ratio. Tried looking for codes near rear break drum but was unsuccessful. Any help will be appreciated!

Mar 30, 2008 · Too much noise, too much fuel, and with a big block Pontiac, uneeded. I ran a 3.90 gear in a '65 for a while. That car HATED the hiway. Top end was 107 mph, at redline. It would get there …

Nov 20, 2023 · In late 1965, Pontiac offered an over the counter ram air kit for the tripower set-up. In '66, the first Ram Air I GTO's were introduced, engine code XS. They were 4 speed M21 cars with a 4.33 …