The Revolution Performance Bolt-On Big Bore Kit has proven itself time and time again on the dyno, but now it’s ready to prove itself to you! We’ve done the research for you, picked the proper components and packed on the savings in an all-inclusive kit ready for installation.
For maximum horsepower output, the Stage 3 kits are available in bigger cubic inch packages. These kits are custom tailored to your needs and budget. Call for details!
Twin Cam Bolt-On
Big Bore Kits
Twin Cam Bolt-On Big Bore Performance Kit 
This kit includes the famous Revolution™ aerospace grade all aluminum cylinders with nickel-silicon-carbide electroplated bores. Also included are our new Revolution Performance pistons and high performance head gaskets. This is a true bolt-on kit and absolutely no machine work is required. Revolution™ cylinders are the only cylinders in the world that carry a lifetime warranty against warping and/or plating defects!
Choose either the 98 inch kit for your 99-06 or the 107 inch kit for your 07-up Twin Cam. Check out the Dyno Charts pages for some awesome examples of what your power return per dollar is with this extraordinary kit!
| Description | Contents | Styles | Price (U.S.) | |
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107 cid Bolt-On Big Bore Kit for 07 and later Harley-Davidson® Twin Cam models **No Case Boring**
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3.938″ bore Revolution cylinders 10.5:1 forged pistons, pins, clips, rings head and base gaskets
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Black Highlight 201-119W Black Highlight 201-119W45 Black 201-119ABW Silver 201-120W |
$999.95 | |
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99-Up Harley-Davidson Twin Cam models Bolt-On Big Bore kit, 98 cid, 3.938″ x 4.00″
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3.938″ bore Revolution cylinders 10.5:1 forged pistons, pins, clips, rings head and base gaskets
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Black/Blk Highlight 201-103W Silver 201-101W |
$999.95 | |
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NEW! 113 cid Kits for 2012 SE 110 Motors
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4.060” bore cylinders; 4.375 stroke; 10.5:1 domed pistons, pins, clips, rings head and base gaskets
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Granite Black Blk Highlight Silver |
$1099.95 |