S&S, Evo SuperStock replacement piston kit 3-5/8". +.020"

Replacement dished pistons for 3-5/8" Big Bore applications. Compatible with 1984 to 1999 Evolution Big Twin models equipped only with S&S SuperStock heads and 3-5/8" bore cylinders, combined with 4-1/4" strokes (5.375" cylinders, 9.4:1 compression ratio), 4-1/2" (5.500" cylinders, 9.8:1 compression ratio) and 4-5/8" (5.565" cylinders, 10.1:1 compression ratio).
S&S tolerance recommendations: Tight fit .0015" to .002". Loose fit: .003" to .004".
All pistons include wrist pins, pin clips and piston rings.
Note: In any application, the technician must be able to assess the suitability of the components in combination with the other engine components before installation. It is important that a qualified mechanic carries out the installation and necessary adjustments. The rider must follow standard running-in and riding procedures for rebuilt engines.


Specifications


Brand
S&S


Application
84-99 3-5/8" big bore Evo Big Twin with S&S SuperStock heads and 4-1/4" (std), 4-1/2" and 4-5/8" stroke flywheels (NU)


Sales unit
Kit


Material
Aluminium


Packaging weight
1.289 kg


HS Code
84099100


Motorcycle family
BIG TWIN, DYNA, FX, FXR, SOFTAIL, TOURING


Original name
S&S, 3-5/8" repl. Evo SuperStock piston kit. +.020"