Twin Cam Piston Kits

Our customized Revolution Performance piston kits have been redesigned, upgraded, and manufactured by Wiseco to improve performance and compatability with our plated bore cylinders. Our pistons are top of the line and will bring your power output to a whole new level!

Pistons formerly used in our kits from CP and JE are still available upon request. Please contact a customer service rep for ordering information.

Twin Cam Forged Piston Kits

Revolution Pistons
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Buy these in the new online store.

Available from
Drag Specialties

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 10.5:1 301-104W $369.95 Enter Store link
Twin Cam Flat top piston 3.938 4 9.7:1 301-105W $369.95 Enter Store link
99-Up Twin Cam 107cid Forged Piston Kit 4.125 4 10.5:1 301-106W $369.95 Enter Store link
Twin Cam 117" reverse dome Flat top piston 4.125 4 call 301-119W $383.95 Enter Store link

Twin Cam Monster Big Bore Pistons
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Buy these in the new online store.

Available from
Drag Specialties

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 Kit Price (U.S.) Buy Now
New Twin Cam 124" Flat top piston 4.25 4.375 301-111W $369.95 Enter Store link
New Twin Cam 114" Flat top piston 4.25 4 301-117W $369.95 Enter Store link
New Twin Cam 131" Flat top piston 4.25 4.625 301-113W $369.95 Enter Store link