Harley Davidson Forums - S&S Sidewinder Big Bore kits for Harley-Davidson Twin Cam Motorcycles

Give us a call on 888.575.6570 for the best service and smoothest transaction possible!

Available in 100” size for early Twin Cams and 110” displacement for later models, each Sidewinder big bore kit comes with everything you need for a simple, straight-forward installation. There’s no case boring or machining required to add displacement to your machine! Particularly unique to this kit is the use of low-friction ductile iron bores wrapped inside the cast aluminum jugs. This arrangement provides improved thermal conductivity making it easier to correctly meter fuel delivery for improved engine performance.

Give us a call on 888.575.6570 for the best service and smoothest transaction possible!

Each kit comes with a set of cylinders, finished in silver or wrinkle black, along with gaskets and a set of CP Corrillo forged pistons with rings. It’s all there, in one box ready for your build, just add your Twin Cam engine!

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