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 designed to be used with stock cylinder heads or with S&S Performance Replacement heads. Low silicon forged material and advanced S&S piston skirt design result in high strengh and low noise. 3-1/2" +.020" bore.
Key Features
Brand Manufactured by S&S Cycle
Category Engine Components
Type Piston Sets - Powersports
Specifications
Length 9 in
Width 5 in
Height 5 in
Weight 2.4 lbs
Rider Benefits
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 designed to be used with stock cylinder heads or with S&S Performance Replacement heads. Low silicon forged material and advanced S&S piston skirt design result in high strengh and low noise. 3-1/2" +.020" bore.
Please review manufacturer details to ensure proper fitment before ordering.