Quote Originally Posted by burnout1969 View Post
Pat, after removing the head you can see in the cylinder that it was leaking from the lower water jacket on the #1 side of the #3 cylinder. It shows a water damaged path in the cylinder from where it leaked and I hope a hone will clean it up. I have been doing some reading on the mls head gaskets and you need a very smooth surface on both the block and cylinder head. The cylinder head looks to have a visual imperfection in the area it leaked from but it feels smooth. I think I am going to have both the block and head redone very smooth as well as the heads magnafluxed.
i used the mls on many build s the most used gasket i use next to the f1017-1 . deck need s to be smooth but need to be flat just as well . i just used two sets this week . on two big bore bbc .your heads can be black light check with a penetrant /developer on aluminum .but i do a pressure check tells me more my shop i have two mill to deck blocks and heads were in the past i have had great luck with feed+speed =finish on both aluminum and iron parts. and use poly crystal diamond on a breco mill for aluminum