I assume the issues will be in the heads/head gaskets but just hoping they are repairable. As long as they are not cracked and the cam surfaces are okay. There are no cam bearings but they can be machined to accept cam bearings. There are no more new heads to be had. Ford sold all they had to DSS and other engine builders. I bought the last brand new set from DSS a few years ago. There are lots of good used heads around though.

JJ