Includes standard thickness 24 valve Cummins gasket modified for the use of fire rings. Requires the machining of grooves into the cylinder head or engine block for use.
6 mild steel rings included.
If you plan on using 12mm head studs, groove depth needs to be: 31-32 thousandths deep, with a width of 105 thousandths. If you plan on using 14mm head studs, groove depth needs to be: 29-30 thousandths deep, with a width of 105 thousandths.
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