Posted by Ron on February 03, 2004 at 14:30:23:
In Reply to: exhaust manifold posted by Tony on 19:57:21 02/02/04:
The frost plugs are brass. You can get them from Moyer Marine, check their web site. If memory serves they are about $5 each. Mine I put in with epoxy as the ridge that holds them had partially rusted away. After they were pushed in(a tight fit), iput more epoxy around the outer seam as belt and suspenders.