Thanks and yes I did. I tryed going with 3 thin coats of copper spray. Head and block were glass sanded after shaving. I'll find out in the morning and will retorq bolts a couple times. I didn't want to ultra copper because I thought it might bend it taking it back off + removing all of it off to put back on. Going to be trying a couple different heads. Thanks for all the input and replies I appreciate it.