Looking for full lengh (long tube) headers for my Pontiac Grand Prix .... 455ci Help please.





Thanks
Glen  

Glen,
I have installed a set of Summit's headers listed to fit GTO LeMans and Grand Am on my 75 Grand Prix. They are 4 tube 1 5/8" headers. Some denting is required for clearance, modification of shift rod and removal of a bolt on brace is required. My G.P. has a double hump crossmember and true dual exhaust with no converter. You didn't specify but I believe these will only fit with a console shifter. I hope this helps. Good luck  

Something I recently learned the hard way in the word PONTIAC and headers should not be used in the same sentence. I bought the Hooker set for my car, 65 GTO. After flattening one tube to clear the drivers side A-arm and moving brake lines the darn things were only 4 1/2" off the ground. The frame is about 7 1/2" off the ground. Called Hooker in Bowling Green and the Tech said, "if you don't like 'em send 'em back and don't buy another set". So I did, the guys at JEG'S were great. So I replaced those with Hedman's for that car. Those hit the cross member and was no room for the passenger side brake line. To top it off the passenger side was about 6-7" shorter than the driver's side. So I ended up with RAM-Air Restorations cast iron and like them just fine. A little pricey but they fit. They can furnish everything you need to finish the job.