Sportster Performance Kits
Tired of the headache of trying to piece together engine packages that may or may not work the way you planned? We have done the research for you and even packaged the proper components at significant savings over buying them separately! Each of these kits has not only proven itself on the dyno but in the real world also!
For the really BIG horsepower numbers, Stage 3 kits are available in bigger bore sizes. These kits are custom tailored to your needs and budget so call for details.
| Bolt-On Big Bore Kits |
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All Revolution™ cylinder and piston kits come complete with our one piece, all aerospace grade aluminum nickel-silicon carbide plated bore cylinders, complete forged piston kit and head and base gasket kit! Our industry leading lifetime warranty applies to all our cylinders! Now come and get’m! Buy these in the new online store. |
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| Monster Big Bore Kits |  |
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Kits come complete with Revolution all aluminum Nickel Silicon Carbide coated cylinders, forged pistons, wrist pins, locks, rings and head/base gasket kits, as well as a lifetime warranty. Available in natural silver, all black, and black with highlighted fins. Our 3.875" bore kits deliver a whopping 90 inches to your big bore project in your OEM cases! This bore size can only be achieved by utilizing our one piece aerospace alloy cylinders and plating process. Don’t be fooled by the imitators. Go fast with the innovators! From a stump pulling touring machine to an all out race bike this is THE kit to have to be as big as you can be! All require case boring. Buy these in the new online store. |
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| Throttle body not included. | |||||||||||||||||||||||||||||||||
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