Compression Ratio: 13.4:1. Bore: 77 mm.

• Kit comes complete with gaskets, cylinder, piston, rings, pin and clips
• Big bore cylinders do not require machine work.
• Made in the USA
• Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders
• Cylinder kit includes matched Vertex pistons to ensure longevity, performance and reduced engine noise
• Nickel Silicon Carbide plated for long life