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I have Hooker Super Comp headers for my 1967 GTO that are suppose to fit but I cannot for the life of me find the room for them. Passenger side the top of the A arm and oil filter hit and driver's side there is zero room between where the header goes and the steering shaft. Do I need to alter my motor mounts? The engine is still in the car, do I need to pull the engine and then install the headers first. Any advice would be greatly appreciated from anyone who has accomplished this feat!!!
 

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I have Hooker Super Comp headers for my 1967 GTO that are suppose to fit but I cannot for the life of me find the room for them. Passenger side the top of the A arm and oil filter hit and driver's side there is zero room between where the header goes and the steering shaft. Do I need to alter my motor mounts? The engine is still in the car, do I need to pull the engine and then install the headers first. Any advice would be greatly appreciated from anyone who has accomplished this feat!!!
Headers are a pain in the a**,I went with heedman shorties on my 72,You may want to try to lift the engine slightly. Watch the distributor and fan .The oil filter housing comes off but will you have enough room to get it back on with the header in place.Napa has the gasket for the oil filter housing
 

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Resold the new headers I bought after rebuilding my engine.... and bought ram air manifolds instead. Probably one of my better decisions.
 

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Discussion Starter #4
Headers are a pain in the a**,I went with heedman shorties on my 72,You may want to try to lift the engine slightly. Watch the distributor and fan .The oil filter housing comes off but will you have enough room to get it back on with the header in place.Napa has the gasket for the oil filter housing
Right now we are under house arrest due to the virus so going to Napa is out of the question for the next 3 weeks. However I did manage to move the engine over towards the passenger side and back towards the fire wall about a inch and a half. Headers still don't want to fit but what a difference in space. I hate to do this but with a few strategically placed dents in three of the header pipes I think it will work. Thanks again for the response
 

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Resold the new headers I bought after rebuilding my engine.... and bought ram air manifolds instead. Probably one of my better decisions.
Thanks for the response, if I can't get my headers to fit after all the trouble I'm going to go through, Ram air manifolds will be the route I will be taking as well.
 

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I have not tried installation of all the brands available now, but have never known anyone to get 4 tube headers installed on an old Pontiac without making lots of modifications to the headers and/or car.
 
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