107" | 113" | 124" Cylinder Kits / Twin Cam

Revolution Performance NSC plated bolt-on cylinder kits in 107", 113", and 124" for '07-'17 Twin Cam motors.

Displacement is the most honest path to power, and Revolution Performance builds these kits to add it without sleeving. Each cylinder is aerospace grade aluminum with a nickel silicon carbide electroplated bore that cuts friction, runs cooler, and lasts longer than an iron sleeve. Choose the 107" for 103" Twin Cams with 86cc heads, the 113" for the Screamin Eagle 110 with CVO 95cc heads, or the 124" for the SE 120R with 120R heads, in black with highlighted fins or black granite.

Features

• Aerospace grade all-aluminum cylinders with a nickel silicon carbide (NSC) electroplated bore
• No sleeving, which allows for larger bore sizes
• NSC plating reduces friction for more horsepower, lower engine temperatures, and longer lifespan
• Includes a pair of NSC coated cylinders, custom forged pistons with high tension rings designed for NSC bores, and a head and base gasket set
• Replacement gasket sets available separately
• Upgraded cylinder studs and head bolts recommended
• Made in the U.S.A.

Specifications

• 107": 3-15/16" bore, 4-3/8" stroke, 10:1, flat top pistons, 86cc heads
• 113": 4-1/16" bore, 4-3/8" stroke, 10.6:1, CVO 110 95cc heads only
• 124": 4-1/8" bore, 4-5/8" stroke, 11:1, 95cc 120R heads only, requires case boring

Note: No shipping to California.

Frequently Asked Questions

Do I need to bore my cases?
Monster big bore kits require case boring. Bolt-on kits do not. Check the specific kit and ⚠️ VERIFY your case and head combination before ordering.

What head do I need?
Each displacement is matched to a specific head chamber volume. Match the kit to your heads exactly, since compression depends on it.

Are pistons included?
Yes. Each kit includes custom forged pistons with high tension rings designed for the NSC bore, plus a head and base gasket set.