Forged Piston Kit For Big Twin

Weight (lbs): 2.89 Wiseco pistons are forged from hi-silicon aluminum alloy for superior strength and dependability The unique piston shape allows tight piston-to-wall clearances for quieter operation Grooves are machined around the top ring lands to reduce detonation and improve the sealing power of the top ring Designed for stock stroke flywheel only All wrist pin holes are ream fit for a perfect geometrical surface Enlarged valve pockets provide the clearance for larger valves and high lift cams but must be checked Includes instructions and clearance recommendations Wiseco Piston kit Fits: Harley Twin Cam 1999-2014 (97ci) 10.5:1 compression ratio Std. 3.937" Bore size