Top End

S&S Cycle #106-5512 - Piston Kit - Low Compression - 80" Stock Motor - +.010

These 3-1/2" +.010" bore pistons fit 1979-'84 80" HD® big twin engines, producing 8:1 compression with stock unmodified cylinder heads.. The modern alloys used in these pistons, coupled with the...

S&S Cycle #106-5513 - Piston Kit - Low Compression - 80" Stock Motor - +.020

These 3-1/2" +.020" bore pistons fit 1979-'84 80" HD® big twin engines, producing 8:1 compression with stock unmodified cylinder heads.. The modern alloys used in these pistons, coupled with the...

S&S Cycle #106-5514 - Piston Kit - Low Compression - 80" Stock Motor - +.030

These 3-1/2" +.030" bore pistons fit 1979-'84 80" HD® big twin engines, producing 8:1 compression with stock unmodified cylinder heads.. The modern alloys used in these pistons, coupled with the...

S&S Cycle #106-5519 - Piston Kit - High Compression - 80" Stock Motor - Standard

These 3-1/2" standard bore high compression pistons fit 1979-'84 74" HD® big twin engines, producing 9:1 compression with stock unmodified cylinder heads.. The modern alloys used in these pistons,...

S&S Cycle #106-5520 - Piston Kit - High Compression - 80" Stock Motor - +.010

These 3-1/2" +.010" bore high compression pistons fit 1979-'84 74" HD® big twin engines, producing 9:1 compression with stock unmodified cylinder heads.. The modern alloys used in these pistons,...

S&S Cycle #106-5521 - Piston Kit - High Compression - 80" Stock Motor - +.020

These 3-1/2" +.020" bore high compression pistons fit 1979-'84 74" HD® big twin engines, producing 9:1 compression with stock unmodified cylinder heads.. The modern alloys used in these pistons,...

S&S Cycle #106-5535 - Piston Kit - Shovelhead

This new forged, high compression, 3-5/8" bore stroker piston replaces several cast and forged big bore pistons that S&S® previously offered. Applications for this piston include 88" (4-1/4" stroke)...

S&S Cycle #106-5536 - Piston Kit - Shovelhead

These forged 3 5/8" bore stroker piston replaces several cast and forged big bore pistons that S&S® previously offered. Applications for this piston include 88" (4 1/4" stroke), 93" (4 1/2" stroke),...

S&S Cycle #106-5537 - Piston Kit - Shovelhead

These forged 3 5/8" bore stroker piston replaces several cast and forged big bore pistons that S&S® previously offered. Applications for this piston include 88" (4 1/4" stroke), 93" (4 1/2" stroke),...

S&S Cycle #106-5538 - Piston Kit - Shovelhead

These forged 3 5/8" bore stroker piston replaces several cast and forged big bore pistons that S&S® previously offered. Applications for this piston include 88" (4 1/4" stroke), 93" (4 1/2" stroke),...

S&S Cycle #106-5554 - Piston Kit - For 89" Stroker Kit - 3.500" - Standard

These forged 3-1/2" bore stroker pistons for 1984-'99 HD® Evolution® big twin engines are required for the S&S 89" stock bore stroker kits, which include S&S 4-5/8" stroke flywheels. Pistons are...

S&S Cycle #106-5555 - Piston Kit - For 89" Stroker Kit - 3.500" - +0.010"

These forged 3-1/2" bore stroker pistons for 1984-'99 HD® Evolution® big twin engines are required for the S&S 89" stock bore stroker kits, which include S&S 4-5/8" stroke flywheels. Pistons are...

S&S Cycle #106-5556 - Piston Kit - For 89" Stroker Kit - 3.500" - +0.020"

These forged 3-1/2" bore stroker pistons for 1984-'99 HD® Evolution® big twin engines are required for the S&S 89" stock bore stroker kits, which include S&S 4-5/8" stroke flywheels. Pistons are...

S&S Cycle #106-5793 - Piston Kit - For 89" Stroker Kit - 3.500" - +0.030"

These forged 3-1/2" bore stroker pistons for 1984-'99 HD® Evolution® big twin engines are required for the S&S 89" stock bore stroker kits, which include S&S 4-5/8" stroke flywheels. Pistons are...

S&S Cycle #106-5909 - Valve Spring Kit - 0.650" - Sidewinder® - 88"/96"/103" Twin Cam '05-'17

Manufactured from ultra clean high silicon Kobe alloy wire then micro shot peened and nitrided. CNC machined 9˚ locks, high performance conical single wire spring, and chromoly forged retainers...