Big Bore & Performance Kits

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Monster torque and horsepower that you want with the reliability that you need. Revolution aerospace-grade, all-aluminum cylinders with nickel-silicon-carbide electroplating. ... ...more
Prices from $566.93
Get big power with a bolt-on kit; no machining required. Revolution cylinders are made of aerospace-grade aluminum with nickel-silicon-carbide electroplated ... ...more
Prices from $566.93
Black powdercoated. Fits: Harley Davidson Big Twin Models 2007up. SPECIAL NOTES:SS highly recommends installing a performance cam for easier starting ... ...more
Black powdercoated. Fits: Harley Davidson Big Twin Models 19992006. SPECIAL NOTES:SS highly recommends installing a performance cam for easier starting ... ...more
Want to unleash all the power your Honda GROM can handle? Our 170cc big bore kit is the perfect addition ... ...more
Prices from $310.46
Revolution™ aerospace-grade all-aluminum cylinders with nickel-silicon-carbide electroplated bores which means NO SLEEVING; allows larger bore sizes and less friction for ... ...more
Prices from $1,069.99
Features the largest bore (3.937 in.) that can be fit in a stock engine case. Cylinder and piston kits make ... ...more
Prices from $923.79
S&S Cycle 106" Big Bore Kit At 3.927? bore, these cylinders have the largest bore that S&S feels can safely ... ...more
Prices from $749.95
Upgrade your 883 or 1100 XL to a blistering 1200cc with this Big Bore kit. It comes ready to install ... ...more
Price $229.95
S&S Cycle 97" Big Bore Kit The 97" Big Bore kit for 88" motors yield excellent results with stock cylinder ... ...more
Prices from $749.95
 
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