S&S, Evo stroker piston kit (OEM heads). +.030"

89". 3-1/2" stock bore x 4-5/8" stroke. Use with stock cylinders and heads in combination with 4-5/8" stroke flywheels. Converts the stock 80" (1340cc) Evo B.T. to 89" (1459cc). Approximate compression ratio 9.25:1. The kits include forged pistons, piston pins, pin locks and piston rings.
Note: In all applications, 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 installs and makes any necessary adjustments. The rider must follow standard break-in and riding procedures for rebuilt engines.


Specifications


Brand
S&S


Application
84-99 Evo Big Twin with 4-5/8" stroker flywheels (NU)


Sales unit
Set


Material
Steel


Packaging weight
1.133 kg


HS Code
84099100


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


Original name
S&S, Evo stroker piston set (OEM heads). +.030"