Thread: Identify My Exhaust Manifolds
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Old 06-29-2022, 10:19 AM
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jhein jhein is offline
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Join Date: Dec 2020
Location: Oregon
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Default Identify My Exhaust Manifolds
These are the manifolds that were on my motor. I think they are aftermarket because both sides have three bolt flanges (I thought all Pontiac manis had two on one side) and the ID of the collector is 2.315 inches. Plus they look in too good shape to be 55 years old. The part numbers maybe indicate a 67 GTO.










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