Old timer at the machine shop who is servicing my B230FT head and block said to spray some "Copper Spray-A-Gasket" on the head gasket before assembling the cylinder head back onto the block. My machine shop is top-notch and I have no doubt the mating surfaces will be completely true and flat, but this guy dates back to flat-head Ford days.
He agreed it will make it a tough job for the guy doing the next replacement (head gasket) job, but said it will seal it tight and leak free for the high turbo pressures and temperatures.
I'm an O.E.M. type of guy who follows Green Book policy.
I welcome anybody who could weigh in...
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