what head gasket did you use as a replacement?
also, did you properly torque it in sequesnce? there is a certain pattern to do it in......
and, did you check that the block was square before putting the head back on.....
did oyu take the head to a reliable machine shop? or some dude i na van?
you most likely wot be able to see a crack in aluminum.... you might want to just get a new tchain cover to eliminate that as an possible problem.
I used the Fel Pro Permatorque, cleaned the block with acetone and made sure it was square. I torqued it to 60 ft lbs following the pattern in the haynes manual. It went to the machine shop that always does my machine work. They have buillt us some V8s and some 22r before.