Description
S&S Cycle Bore Forged Piston Kit: 84-99 Harley-Davidson Big Twin Evolution Models - 3-1/2" - 106-5554
Fitment: 84-99 Harley-Davidson Big Twin Evolution Models
These forged 3-1/2" bore stroker pistons for 84-99 Harley-Davidson 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.
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
