V Twin Powersports M8 4.500″ Big Bore Piston & Cylinder Kit – This kit requires case boring to 4.7650″. Kit includes: 2 cyclinders w/ dura-bar ductile iron sleeves, honed to fit pistons, 2 forged vertical gas ported pistons, 1 set of 1mm/1mm/3mm Total Seal rings, and Cometic head and base gaskets. Piston deck height must be checked prior to assembly.
4.375", 4.500", 4.625"
Flattop 0.0cc, Dome 20.0cc
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