S&S CYCLE 136" BIG BORE KIT HARLEY DAVIDSON M8 17-25 MODELS harley clutch Please use the drop down

Please use the drop down to select your bike

In addition

CHOOSE FROM 51 OR 53 TOOTH

Whether you’re stacking highway miles or twisting through canyon sweepers

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S&S CYCLE 136" BIG BORE KIT HARLEY DAVIDSON M8 17-25 MODELS harley clutch Please use the drop downS&S CYCLE 136" BIG BORE KIT HARLEY M8 17 25 MODELS Bolt on kit, the largest cylinder bore possible without requiring machining of crankcases Includes MLS (multi layered steel) head gaskets and cam cover badge S&S stroker 4. 625" flywheel required and is sold separately Takes 107" 114" 117" to 136" displacement Original engine serial numbers are retained Retains stock engine height Made in the USA NOT COMPATIBLE WITH VVT MODELS