For 1999-2017 Twin Cam 88 inch 96 inch 103 inch bored to 1746cc (106 cu. in.) with 4-3/8 inch stroke crank (except Twin Cooled models) (10:1 compression flat top). Kit includes Armor X coated pistons and top end gasket kit. **Note:Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings. *NOTE: 1999-2006 applications will require crankshaft to be changed to 4-3/8 inch stroke.
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