Thread: silicon instead of gasket

Originally Posted by minichopper6hp

I have in fact used this product, on my valve covers, worst mistake I could have made. Basically ruined my valve covers it destroyed them so bad.

Of course I wouldn't recommend using this stuff on valve covers. Thats because the valve covers are made out of PLASTIC. Hell I don't use any sealant on valve covers, unless the valve cover gasket groove is chipped. If its chipped, I'll use black RTV which saves them from purchasing another valve cover.