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post #1 of 3 (permalink) Old 02-26-2018, 08:20 PM Thread Starter
 
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exhaust gaskets

For stock exhaust manifolds on a 400, do the thin aluminum Felpro exhaust gaskets in a kit actually work? Or, is it better to get a thicker style?
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post #2 of 3 (permalink) Old 02-26-2018, 08:24 PM
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Stock cast iron manifolds are very rigid and don't flex like headers can. As long as both surfaces are clean and relatively free from pitting, you should be fine. I like using anti-seize compound on the bolts so they're not such a pain to remove "next time".

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post #3 of 3 (permalink) Old 02-28-2018, 04:57 PM Thread Starter
 
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Exhaust, Suspension, Alignment, Fuel Tank and Brakes.

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