Twister Billet Powervalve Cylinder

This top end kit comes complete with cylinder, head, domes, powervalves, reeds, pistons, intakes, and all necessary hardware & o-rings. These cylinders are the first ever CNC ported cylinders available, and also the first ever completely billet cylinders available to the public. Our unique porting layout gives you more power than anyone else, right out of the box! Another unique feature is the water system, which enters the cylinder below the exhaust port. This keeps the cylinder at an even temperature, keeping your bores rounder, and eliminating hot and cold spots in the cylinder. With more power, a stronger cylinder, CNC porting, and the longevity and reliability this kit offers, these cylinders are revolutionizing the industry.