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J and P Cycles
J&P Cycles, Inc. was founded by John and Jill Parham in 1979. It sells motorcycle components, apparel, and gear for the American V-twin motorcycle rider.
Detail
Replacement 74 Knucklehead cylinder and piston kit are honed and pre fitted with 8.5:1 compression cast pistons and Hastings Rings. 8.5:1 compression They are ready to run and will require break-in. Please refer to proper shop manual for suggestions on break-in. For stock stroke only. For 1941-1947 Knuckleheads. Cylinders are without lip on top. Order head base gasket separately. Replacement type cylinder kits do not have original motorcast markings on the cylinder base.