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S&S 107" Big Bore Kit for 2007-2017 Harley Twin Cam

S&S 107" Big Bore Kit for 2007-2017 Harley Twin Cam

This part is bike specific. It will not fit all makes / models / years.

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Product Overview

This bolt-in big bore kit is easy to install, and requires no machining or rebalancing. Stock engine height is maintained so there are no manifold or frame fitment issues. The S&S 11 fin cylinder design closely resembles OEM shape and come prefinished – ready to install. Cylinders feature increased fin area for better heat dissipation, and the centrifugal cast, gray iron liner features 40,000 psi tensile strength for superior wear and performance. The pistons in this kit have a 3cc pop-up dome for slightly higher compression rato. This is one reason to choose and S&S 107" kit over the S&S 106" kit which has slightly less compression

107" Kits have a 10.7:1 Compression ratio when used with stock heads. Will NOT fit Twin Cooled motors (water cooled heads), not for use with 79cc heads.

The Big Bore kit yields excellent results with stock cylinder heads.
Easy installation: no need to bore or split existing cases, just swap the cylinders
Cylinders are constructed from premium aluminum castings with cast-in iron liners
Kits include cylinders, pistons, rings and gaskets (head, base and exhaust)
Black or silver powder-coat finish

Made in the U.S.A.

NOTE: This project requires a skilled technician. It is the responsibility of the person assembling the parts to check all clearances and assembly specifications.


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