Forged Piston Kits & Replacement Parts For Big Twin

Weight (lbs): 2.55 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 flywheels 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 Note: Hastings replacement rings are for one piston only unless otherwise noted by a * Piston Kit Fits: Harley Big Twin Evolution 1984-1999 1340cc (80ci) 10:1 compression, 3.497" standard bore +.020" O.S. By: WISECO PERFORMANCE PISTONS