S&S, 107" to 124" big bore conversion cylinder and piston kit

Complete 2025cc bolt-in kit. Compatible with stock 107" engines that have the required 4.375" stroke. Converts the 107" engine to 124". Includes black cylinders with wrinkle finish and a 4.250" bore forged piston and ring kit, with a 1.143" deck height and -4.3 cc chamber volume for an 11:1 compression ratio with the stock head combustion chamber. Includes all head and base gaskets and the necessary hardware. Provides a massive increase in displacement with bolt-in ease, requiring no case boring, head work or flywheel rebalancing.
Note: Compatible with OEM head bolts, but S&&S recommends the S&&S 576972 head bolt kit, 14% stronger than stock, for all large-displacement applications.


Specifications


Brand
S&S


Application
17-24 107" M8 (NU)


Sales unit
Kit


Colour
Black


Finish
Wrinkle


Packaging weight
13.459 kg


HS Code
84099100


Motorcycle family
SOFTAIL, TOURING, TRIKE


Original name
S&S, 107" to 124" big bore conversion cylinder & piston kit