S&S Cycle #92-1581 - Piston, Set, 4-1/8" x 4-5/8", +.010", RD, Packaged, .927" WP, LSF, 1984-up bt

This 4-1/8" bore piston is intended for use with S&S® special application "Big Fin" cylinder heads in S&S® 124" engines with B2 Twin Cam heads for 1999-'16 HD® big twins. Pistons are clearanced for 4-5/8" stroke. Piston sets include rings. 4-1/8" bore.

Fitment