Is it a good idea? Depends on how often you want to re-do the job, and how many good quality gaskets you want to buy individually. NO, it's not a good idea! Get a good quality name-brand gasket set (Permaseal, for example) from Australia. Ray @ Pentastar Parts shipped my Permaseal head gasket from Australia to USA in well under a week. See to it that whatever set you get includes the
good gaskets for the manifolds-to-head and intake-to-exhaust junctions; those can be had out of Australia, too.
