Race Master exhaust valve set. STD

1.565" STD head diameter. Quality replacement valves, lower priced than the Manley 'Severe Duty' valves. Still offering a significant improvement over the OEM valve. Stainless steel construction with chrome plated stem and hardened tips. Excellent stock overhaul valve. Race Master valves are manufactured of stainless XH-426 for exhaust and stainless NK-842 for intake and offer great ultimate tensile strength, combining superior quality at a competative price. Okay for stock or racing upto 8000 RPM.