After a long hiatus from the boating forums, I'm getting back into the swing of things.
I built a mild blower motor about 7 years back. A recent leakdown showed that it was getting to be time for a valve job, so I tore it down last weekend.
I'm running Dart 345's on an o-ringed block. My question has to do with head gasket options. When I put this thing together, I was advised that the height of the o-ring had to be 20% or less of the copper head gasket overall thickness. Since my o-rings(.041 dia.) are above the deck .018"-.020", I went with .093" thick gaskets. I had a hell of a time getting the gaskets to hold water. Yamabond was used extensively and then there are the quench issues....
Anyway, I'm looking for suggestions here. Can I get away with a thinner copper gasket? What about pulling the o-rings and running one the new fancy mls gaskets? What else can I do?
What say the gurus???