For the rear main cap, PY supplied me with a rubber gasket with spikes on it.
The other 3 gaskets are a composite type material.
It seems to me the rubber gets no sealant and the composite should receive sealant??
If so, sounds like the majority says go with silicone.
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1967 GTO, hard top, 400 Block, Butler Performance Build, EFI Holley Sniper, Tremec 5-Speed, Moser 373 Rear, 4 Wheel Disc Brakes
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