My cam seals FIPG Is more of a bone color, Or light beige. All I know for sure Is that Its origional, and most likely aged. Grey Is used on Imports. Good Luck. !I wouldn't assume the head gasket has been replaced. Lots of high mileage FZJs with original head gaskets. If the half moons on the front of the head under the valve cover have gray FIPG
Chances are good you are still on the original head gasket.
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