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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Connecting Rod Kit - H-Beam - M8$769.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 90" - Black with Highlighted Fins - XL$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 1250 cc - Big Bore - Black - XL1200$1,343.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 1250 cc - Big Bore - Black with Highlighted Fins - XL1200$1,343.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 1250 cc - Big Bore - Natural Silver - XL1200$1,343.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - Monster Big Bore -109" - Natural - Evolution Big Twin '84-'99$1,499.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - Monster Big Bore - 100" - Black w/Highlighted Fins - Evolution Big Twin '84-'99$1,499.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - Monster Big Bore - 100" - Natural - Evolution Big Twin '84-'99$1,499.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 92" - Big Bore - Black with Highlighted Fins - Evolution Big Twin$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 92" - Big Bore - Natural Silver - Evolution Big Twin$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 85" - Black with Highlighted Fins$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 85" - Natural Silver$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 85" - Big Bore - Black with Highlighted Fins - Evolution Big Twin$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 143" - Black with Highlighted Fins - 114"/117" M8$1,899.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 139" - Black with Highlighted Fins - 107" M8$1,899.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 131" - Black with Highlighted Fins - Twin Cam$1,599.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 124" - Granite - Twin Cam$1,529.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 124" - Black with Highlighted Fins - Twin Cam$1,529.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 117" - Black with Highlighted Fins$1,529.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 128" - Big Bore - Black Granite with Highlighted Fins - 114"/117" M8$1,529.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 128" - Big Bore - Black with Highlighted Fins - 114"/117" M8$1,529.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 124" - Big Bore - Black - 107" M8$1,529.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 124" - Big Bore - Black with Highlighted Fins - 107" M8$1,529.95/ kit
In stock
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Possible FitRevolution Performance, LLC Cylinder Kit - 124" - Big Bore - Black with Highlighted Fins - Screamin' Eagle 120R Twin Cam$1,599.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 113" - Big Bore - Granite with Highlighted Fins - Screamin Eagle | CVO 110" Twin Cam$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 113" - Big Bore - Black with Highlighted Fins - Screamin Eagle | CVO 110" Twin Cam$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 107" - Black with Highlighted Fins$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 107" - Big Bore - Black with Highlighted Fins - Twin Cam$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 98" - Natural$1,479.95/ kit
In stock
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Bike Specific Fits Bike Does Not FitRevolution Performance, LLC Cylinder Kit - 98" - Big Bore - Natural Silver - Twin Cam$1,479.95/ kit
In stock
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Possible FitRevolution Performance, LLC Piston Ring Set$62.95/ set
Final Sale Final sale items can't be returned or exchanged.
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Engine parts for Harley-Davidson and Indian V-twins: big bore and stroker kits, cams, heads, gaskets and seals, pistons, valve train parts and complete engines. Brands include S&S Cycle, James Gasket, Cometic, Drag Specialties and Kibblewhite.
Common questions
Can I install engine parts myself?
Gaskets and bolt-on parts suit an experienced home mechanic; internal engine work often needs specialty tools and a service manual.
What is a big bore kit?
A big bore kit increases cylinder diameter to raise displacement and power, usually with matching pistons and gaskets.
Will this part fit my bike?
Use Shop by Bike at the top of the page: pick your year, make and model and every product shows whether it fits. Category pages can also be filtered to your bike, so you only see parts listed for it.