REVOLUTION PERFORMANCE, LLC Monster Big Bore Cylinder Kit

REVOLUTION PERFORMANCE, LLC Monster Big Bore Cylinder Kit (117") – Twin Cam Upgrade your Street Twin Cam with the REVOLUTION PERFORMANCE, LLC Monster Big Bore Cylinder Kit in a bold Black finish with highlighted fins . Built for performance and durability, this 117" kit delivers a strong foundation for increased horsepower and improved running temperature management. This kit features aerospace-grade all-aluminum cylinders with an NSC (Nickel-Silicon Carbide) electroplated bore to reduce friction for more efficient power and a longer lifespan. Key Features NSC electroplated bore for less friction, lower engine temperatures, and extended service life All-aluminum NSC-coated cylinders designed for high-performance applications Includes custom-forged pistons with high-tension rings engineered specifically for NSC cylinders Includes head/base gasket set Made in the USA Requires case boring (not recommended on OEM cases '95 and earlier ) Specifications Type: Monster Big Bore | Riding Style: Street Units: Kit Displacement: 117" Bore Size: 4.125" Stroke Length: 4.375" Compression Ratio: 11.2:1 (also available listing 10.3:1 ) Domed piston design: Yes Material: Aluminum Bore Coating: Nickel-Silicon Carbide Color/Finish: Black with highlighted fins Product Note: Some kits may require a 4.625" stroke crank , as noted.