For anyone curious as to how this is done, here is ONE WAY to do it. Some oring the head, some the block. Some cut one oring, some cut 2. Some use a receiver groove, some do not. So for how we did it, one . 041" stainless wire, (depth a variable secret) here goes: Using a old ISKY Groove-O-Matic, we machined a . 035 groove into the block deck, in the center of the factory fire ring area. This allows the block to revert to a composition head gasket as well.
Drive the stainless wire into the groove carefully, with a plastic hammer, clipping the end at the end of the process so no gap. Protrusion of the ring, dependent upon groove depth. People range it (protrusion) from . 010" to . 018".
Photo:
Drive the stainless wire into the groove carefully, with a plastic hammer, clipping the end at the end of the process so no gap. Protrusion of the ring, dependent upon groove depth. People range it (protrusion) from . 010" to . 018".
Photo:
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