6.5 Precup cracks
I am currently doing the head gaskets on my 94 6.5 non turbo. All looks good but all eight of the precups have cracks. None of the cracks are into the fire ring yet, but some are coming close. I have read in other posts that there should not be a problem with using these as long as the cracks are not into the fire ring or there are no pieces missing. How long will these precups likely last? I would hate to put this all together and have to do it again in six months. I've never messed with a set of precups before, are these easily changed and readily available?
1994 Chev 1500, 4x4, 6.5NA, 180,000 miles
Stock....... for now
1991 GMC 2500, 2wd, 6.2, 350,000 (30k on engine)
Soon to be a parts donor
1993 GMC 2500, 4x4, 6.5T, 225,000 miles. A work in progress