Inliners International Forums General Discussion Blown and Injected GMC 6 at Hot Rod Magazine Drag Week

I use three bond black sealant to seal the copper head gasket-works a treat.i put it on and then wait till the following day before I start it up.i also drill the water passages out,and install small tubes that press in to the block and sit into the corresponding hole in the head(with lots of sealant around them-no leaks.