S&S 3.645 Big Bore piston kit BT84-99

S&S replacement piston kits for use in S&S 96CI V2, 113CI SuperSideWinder, and 124CI SuperSideWinder Plus engines, as well as many S&S and other aftermarket Stroker and Big Bore kits. Kits contain 2 forged pistons, piston rings, wrist pin and clips. Ring sets are also available separately.

3 5/8" bore
S&S 92-1900 series are flat topped 3 5/8" bore pistons for use with stock style cylinder heads. Can be used with stock 4 1/4" stroke, 4 1/2" stroke and 4 3/4" stroke. The 4 3/4" stroke must have small (8 1/4") diameter flywheels.
S&S 92-1930 series are for use with stock style or S&S Performance cylinder heads and are clearanced for 4 5/8" stroke. Stock replacement for late S&S V96 Evolution style engines.
S&S 92-1060 series are high compression pistons. Stock replacement for early S&S V96 Evolution engines as well as 88CI, 93CI and 96CI Big Bore kits with S&S Super Stock cylinder heads. Can be used in 4 1/4", 4 1/2", and 4 5/8" stroke engines with stock (8 1/2") diameter flywheels, and in 3 13/16" and 4 1/4" stroke engines with small (8 1/4") diameter flywheels.