Features: Made from Manganese that can be easily reamed and honed with battery operated or electric drill. High concentricity tolerances are held to insure geometry between the seat and guide. Includes complete set of intake and exhaust guides and seals. Made in the USA. 0.420" seal diameter. Shortened for 0.600" lift. Includes: • 2x Intake Oversize Manganese Guides • 2x Exhaust Oversize Manganese Guides • 4x Red Viton® Seals.
