for Knucklehead, Panhead and Shovelhead
Pistons for Stroker motors. Each kit includes two pistons for front and rear cylinder, including piston rings, pins and clips. Standard size is for the 3-7/16” bore of 74” (=1200 ccm) cylinders. For 80” (=1340 ccm) cylinders 3-7/16” + .060 would be standard size.
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