REVOLUTION PERFORMANCE, LLC Cylinder Kit - 85" - Big Bore - Black with Highlighted Fins - Evolution Big Twin RP201-212W

Cylinder Kit - 85" - Big Bore - Black with Highlighted Fins - Evolution Big Twin
Revolution™ aerospace-grade all-aluminum cylinders with nickel-silicon-carbide (NSC) electroplated bores, which means NO SLEEVING; allows larger bore sizes and less friction for more horsepower, lower temps, and a longer lifespan, True bolt-on kit that delivers major power with no machine work required, Includes custom forged pistons with high tension rings specifically designed for NSC cylinders and head/base gasket set, Made in the USA, Replacement head and base gasket sets available separately., For replacement pistons and rings, see Revolution Performance Big Bore Piston Kits., Upgraded cylinder studs and head bolts recommended.