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Backordered till 02/05/2020 > 4.550 fire rings only, we have 4.500 & 4.560
Includes standard thickness multi-layer steel 6.7L 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.
Detailed instructions on machining guidelines are included.
We HIGHLY recommend the use of HD/L19 Haisley or ARP 625 studs with this kit.
There is absolutely NO WARRANTY expressed or implied on any fire ring head gasket.
Want to read more about Fire Ringing vs O-Ringing your cylinder head? Click here!
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