All valves are specially hardened to a depth of 0.002" and a surface layer of 0.0002". This process improves wear resistance, reduces friction, and provides protection against corrosion and wear. Compatible with leaded and unleaded fuels. Made in the USA.
Kit includes: • 2 Black Diamond™ Intake Valves • 2 Black Diamond™ Exhaust Valves ---------------------------------------------------------------- Dome Angle Intake 28°, Exhaust 34° Dome Angle Intake 28°, Exhaust 34° Applications Exhaust, Intake Stem Diameter Intake 0.2760" Exhaust 0.2755" Stem Diameter Intake 0.2760" Exhaust 0.2755" Head Diameter Intake 1.805", Exhaust 1.575" Head Diameter Intake 1.805", Exhaust 1.575" Length Intake 4.525", Exhaust 4.610" Length Intake 4.525", Exhaust 4.610" Material Steel Stainless steel Black Diamond™ model Standard size Sold in kits
