Big Block Header Gaskets
Team Owner
Joined: Jan 2008
Posts: 30,894
Likes: 1,189
From: chicago
get new ones,soak the fiber gaskets in a wallpaper paste trough overnight and install them/thighten them ,let them sit over-night then tighten down a little bit/snuger,then run eng to get everything hot/let cool and ck for tightness
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
I agree on replacing the gaskets. On the new ones, smear a little black RTV around the ports on both sides of the gasket and they won't leak. Retighten the bolts after the first couple heat cycles.
