Big Bore Race cylinder kits include a nickel carbide coated cylinder ported to factory works specs. special hard anodized exhaust valves, complete Big Bore piston kit, and a top end gasket set. Factory cylinder kits include all parts in the race kits plus an aluminum cylinder head removable brass dome allowing for higher compression and anti detonating features.
Available in standard bore and big bore sizes, 4 stroke kits include a nikel coated cylinder designed with wider water jackets, complete piston kit and top end gasket.