Re: Spark Plug Protrusion into Head?
Been looking for 14mm thread .625 reach plugs. I have only been able to find .625 reach in 12mm thread. Lots of 14mm w .750 reach. I think that will be too long & interfere w valve. I’m think I’m understanding GOFAST’s spacer now. Would be a .125 spacer ring on the spark plug thread to let the .750 reach fit at the desired protrusion of the .625 reach?
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Nomad
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