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Old 03-05-2023, 02:00 AM
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big gear head big gear head is offline
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I've got those "Made For You" spark plug wire looms on my 427. The valve covers always leaked because I couldn't tighten the bolts enough because of the plastic posts. I made new ones from aluminum and no more leaks.
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Freddie
1969 Camaro RS/SS396 (427) 4 speed
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Old 03-05-2023, 07:13 AM
Arrowsmith Arrowsmith is offline
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Quote:
Originally Posted by big gear head View Post
I've got those "Made For You" spark plug wire looms on my 427. The valve covers always leaked because I couldn't tighten the bolts enough because of the plastic posts. I made new ones from aluminum and no more leaks.
Very nice job of machining! Mine don’t seem to leak though. Could be a difference in valve covers, valve cover rails on the heads, and/or gaskets. The Brodix heads I use have a taller rail. I use Mahle or Fel Pro vc gaskets (I don’t have a preference) and glue them to the valve cover.

Last edited by Arrowsmith; 03-05-2023 at 07:21 AM.
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