Cant i get new headers for a 64 389cui? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Classics (Star Chief and 1957 to 1986) Converse about your Classic Bonneville.

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Old 12-04-2009, 05:33 AM   #11
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Ahh, that is very nice. If i cant get headers, i can get some stock manifolds, thats sweet. Thank you very much Rotobicjunky.

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Old 12-05-2009, 09:01 AM   #12
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Your original factory manifolds will work fine with dual exhaust. But you can use the factory HO (high output) long branch manifolds as seen in the previous post. You will also have to get the oil filter adapter. They will really wake your 389 up. These manifolds have been reproduced and are available

67-69 Firebird headers MAY fit your car with little modification.

My suggestion is to use the factory HO manifolds. They fit and work well. I own many mid 60'* Pontiacs.
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Old 02-01-2010, 02:06 PM   #13
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You want Long Branch manifolds... Headers would be a bad choice for anything other then a race car...

Ram Air restoration sells these beautys.... You will also need the oil filter adaptor...
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