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#15780 08/07/2004 6:10 AM | Joined: Jun 2003 Posts: 56 Member | | Member Joined: Jun 2003 Posts: 56 | I stuck mine into the head with a little permatex, not much.
They are supposedly there to make assembly alignment easier. I left them out at first but could never stop the leaking so put them back.
If you had the manifolds surface ground be sure to grind off the rings a small amount or the manifold won't toghten down enough to seal.
'31 Chevy 1 1/2 ton,
'42 GMC 2 1/2 ton 6x4,
'52 GMC 2 1/2 ton 6x6,
'53 GMC 5 ton
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