Top End

Increase the displacement of 883cc and 1200cc engines to 1250cc at 10.3:1 compressionCast Flat-Topped Replacement Piston Kits For 1984-'99 HD® Big Twins with Stock Heads or S&S Performance Replacement HeadsMay be used with stock 1200cc cylinder heads,...

These forged 3-7/8" bore stroker pistons for 1999-'16 HD® Big Twin are required for the S&S 106" stock bore stroker kit with 4-1/2" stroke flywheelsThey are compatible with stock or S&S® Super Stock® cylinder headsStock 88" cylinders may be bored to...

These forged 3-7/8" bore stroker pistons for 1999-'16 HD? Big Twin are required for the S&S 106" stock bore stroker kit with 4-1/2" stroke flywheelsThey are compatible with stock or S&S? Super Stock? cylinder headsStock 88" cylinders may be bored to...

These forged 3-7/8" bore stroker pistons for 1999-'16 HD? Big Twin are required for the S&S 106" stock bore stroker kit with 4-1/2" stroke flywheelsThey are compatible with stock or S&S? Super Stock? cylinder headsStock 88" cylinders may be bored to...

All piston kits come with two pistons, rings, wrist pins, and wrist pin keepersCompression ratios listed are approximate and are calculated using the correct length cylinders as specified by S&SRequire the use of connecting rods with a rod length of 7...

All piston kits come with two pistons, rings, wrist pins, and wrist pin keepersCompression ratios listed are approximate and are calculated using the correct length cylinders as specified by S&SRequire the use of connecting rods with a rod length of 7...

These forged pistons are designed for use in S&S® Big Bore Hot Set Up Kits® for HD® Evolution® big twin engines, and S&S® 3-5/8" bore engines with S&S® Super Stock® cylinder heads and 4-1/4�, 4-1/2" and 4-5/8" stroke engines with stock diameter...

These forged pistons are designed for use in S&S® Big Bore Hot Set Up Kits® for HD® Evolution® big twin engines, and S&S® 3-5/8" bore engines with S&S® Super Stock® cylinder heads and 4-1/4�, 4-1/2" and 4-5/8" stroke engines with stock diameter...

These forged pistons are designed for use in S&S® Big Bore Hot Set Up Kits® for HD® Evolution® big twin engines, and S&S® 3-5/8" bore engines with S&S® Super Stock® cylinder heads and 4-1/4�, 4-1/2" and 4-5/8" stroke engines with stock diameter...

Intended to replace the cylinders and pistons of a 80" Shovelhead engine and maintain the stock compression ratio of 8:1Compatible with stock or S&S cylinder headsIncludes S&S 3.5" bore high tensile cast iron cylinders, 3.5" bore forged standard...

Cylinder and piston kit can be used to build 84", 86" or 88" stroker engines, or to replace the cylinders and piston in an engine with an existing S&S? stock bore kitIncludes 3.4375" bore high tensile cast iron cylinders, 8.4:1 forged pistons with rings...

Cylinder and piston kit can be used to build an 88" engine, or to replace the cylinders and piston in an engine with an existing S&S stock bore stroker kitIncludes 3-5/8" bore high tensile cast iron cylinders, forged pistons with rings and wristpins,...