A full new set of headbolts should be used to replace the head, the bolts are tty (torque to yeild), and do not allow reuse more than maybe twice, sounds as though your current head bolts may be past their service life and have stretched.Head now off to be pressure checked and if needed skim.did look at new heads and now see it's just corrosion eating into it.no obvious sign of damage to head gasket tho all bolts where we'll worn had to force undersized socket on 3 of them and a couple went lose as soon as I cracked them.head gasket also lifted off with out leaving half of it behind never had that before.
new headThanks i have ordered new bolts but I think I may need a new head to go with them.what do you think?.