Manley Performance Valve, Exhaust, Stainless Steel, 1.600 In. Diameter, .341 In. Stem

Manley Severe Duty Pro Flo series performance valves are a great choice for your high performance or race engine. All valves are made from stainless steel (intakes are NK-844; exhausts are XH-428) with chrome stems and hardened valve tips. Severe Duty series valves are made of superior materials, are fully machined and swirl polished, and offer improved flow with undercut "Pro Flo" stems.

• Valve Head Diameter (in):1.600 in.
• Valve Head Diameter (mm):40.640mm
• Valve Stem Diameter (in):0.341 in.
• Valve Stem Diameter (mm):8.66mm
• Overall Valve Length (in):4.936 in.
• Overall Valve Length (mm):125.374mm
• Undercut Stem:Yes
• Swirl-Polished:Yes
• Valve Tip Length (in):0.250 in.
• Valve Tip Length (mm):6.350mm
• Valve Material:XH-428 stainless steel
• Lock Groove Quantity:1-groove
• Lock Groove Style:Conventional
• Approximate Weight (g):98
• Valve Head Style:7 degree dish
• Valve Seat Width (in):0.100 in.