infinityron
Contributing Member
Quick question, I'm gonna be replacing my 90 degree cast iron elbows behind the risers on mercruiser 7.4 mie's. To get the hoses off, I will need to unbolt the risers from the manifolds to move the risers. I have the "fresh water cooled" system with center rise risers off the manifolds and no spacer blocks. I want to have the new block off gaskets in hand and I see they are pretty cheap, like $12 on ebay for two of them or $25 on amazon, but I don't think those are stainless and I don't know what is currently in there. Ok to go with these fabric gaskets (block off plates) or should I spring for Stainless block off plates?