Twin Cam Piston Kits

Revolution Performance piston kits for Harley-Davidson® Twin Cam engines have been redesigned and manufactured by Wiseco to improve their performance and compatability with our Revolution Cylinder® plated bores. Think of this as an upgrade to what was already the best!

If you think we already offered the best pistons before from CP, JE and other manufacturers, we still offer them, just give us a call toll-free at 1-866-892-2109.

Twin Cam Forged Piston Kits Revolution Pistons
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Introducing the Revolution Performance Piston Kits for Harley-Davidson Twin Cam engines, manufactured by Wiseco. This new piston is part of an ongoing commitment to keep improving the quality and performance of Revolution’s products and services. Specific features of the new piston are:

  • Auto-Fit Coating™ – a patent pending, permanently bonded, moly based coating process designed to last for the life of the piston
  • Applied to 30 micron thickness allowing for tight piston to sidewall clearances for ultra quiet operation.
  • Gas nitride coated rings for ultimate compatibility with NSC plated bores
  • Over 2,000 hours of durability testing to insure the quality of the pistons

The new pistons are among the best in the market, offering superior ring seal, bore compatibility, quiet running and overall lifespan durability.

Application Bore Stroke CR Kit Price (U.S.) Buy Now
Twin Cam dome piston 3.938 4 10.5:1 301-104 $369.95 Enter Store link
New Twin Cam Flat top piston 3.938 4 9.7:1 301-105 $369.95 Enter Store link
Twin Cam dome piston 4.125 4 11:1   $369.95 Enter Store link
New Twin Cam Flat top piston 4.125 4 10.5:1   $383.95 Enter Store link

Twin Cam Monster Big Bore Pistons
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These are our new Revolution Performance pistons manufactured by Wiseco specifically for our Monster big bore cylinders. They include the same benefits as our Forged Piston Kit: Auto-Fit™ Coating, gas nitride coated rings, 30 micron thickness, much durability testing.

Monster Big Bore Piston photo
Application Bore Stroke CR Kit Price (U.S.) Buy Now
New Twin Cam Flat top piston 4.25 4 10.75:1 301-108 $369.95 Enter Store link
New Twin Cam Flat top piston 4.25 4 11:1 301-117 $369.95 Enter Store link