I think you have problems other than the head bolts. In 1965 they commonly reused headbolts, not like the special head fastening systems they have now. I think it has to come apart and you need to find out why it leaked --- bad gasket, bad mating surface(s), improper torque or whatever.
But first, I would just try retorquing the head.
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Thursday, May 3rd, 2007 AT 1:32 PM