oh and i like to have proof as to what i say here ya go
Yamabond 4 Motorsports
Yamabond 4 Motorsports is a silicone-based liquid gasket that fills gaps on a flange surface and prevents leaks. When cured, this product forms a rubber-like body that resists heat and seals joints subjected to high temperature. Gear- and engine-oil resistant, Yamabond 4 Motorsports sets in 60 minutes. Not for use on copper or copper-based alloys.
Yamabond 4 Motorsports, 3 oz. Tube
(Dealer Order Qty.=1)
ACC-BOND4-MC-00