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Quote:
Originally Posted by AL in NY
If you use the Best Graphite 509g, Rich Falluca's recommendation is NOT to use any type of sealer, that way the graphite "bonds" to the block and cylinder head metal. Don't know, as I am not a metallurgist, just going by Rich's recommendation and he should be in a position to "know".
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Exactly what I did when installed my 6:1 head over 3,000 miles ago. No leaks, no weeping around the edges. Something AER also recommended at the time was a dab of RTV around the stud at the base of the stud. No coppercoat or anything else for sealer on the surface of the head gasket.