Thread: 77 400 Pontiac Grand Prix Headers
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Old 03-14-2018, 03:56 PM
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1977GPX 1977GPX is offline
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Default 77 400 Pontiac Grand Prix Headers
Hello All,

Can anyone give me some information on what Make/Model headers work best for my 400. Cylinder heads are D port Aluminum 72cc heads. Appreciate any advice.

Thanks,

Gregg

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