Hi

I`ve got a mate with a 400 chevy with a weiland 6/71 blower on it , just had the bottom end rebult and low comprssion piston fitted , but it keeps blowing head gaskets , then at the weekend at a drag meeting did them again when we stripped it out found 3 of the studs into the block were cracked into the bores, is this a common fault or to do with the blower
He has been told to O ring the new block next time instead of head gaskets
is theis a good idea ??

Craig