107" Bolt-In Big Bore Kit for 2007-'17 HD<sup>®</sup> Big Twins (except '17 touring) - Silver Finish
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107" Bolt-In Big Bore Kit for 2007-'17 HD® Big Twins (except '17 touring) - Silver Finish

Item #: 910-0480
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This bolt-in big bore kit is easy to install, and requires no machining or rebalancing. This is the largest bore (3.937") that can be fit in a stock engine case. 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.

*Not compatible with S&S 79cc Super Stock® heads.

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S&S® highly recommends installing a performance cams for easier starting and better engine performance. S&S high flow cylinder heads or CNC ported stock heads will provide further horsepower gains. For an additional .2 bump in compression, order .030" thick head gaskets #900-0216 (2 pack). Clearances must be checked. These kits require tuning. When used on EFI models, S&S recommends Dynojet® Power Vision flash tuner, for more information,

DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. Not legal for sale or use on any EPA pollution controlled motor vehicle.