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Manley Severe Duty Series Stainless Steel Valves 11580-1
Part Number: MAN-11580-1
Manley Severe Duty Series Stainless Steel Valves
Valve, Intake, Severe Duty, Stainless Steel, 2.325 in. Diameter, 0.3415 in. Stem, 6.59 in. Length, Each
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Estimated Ship Date: Nov 2, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11580-1
Part Type:
Product Line:
Summit Racing Part Number:
MAN-11580-1
UPC:
807298050584
Valve Position:
Intake
Intake Valve Head Diameter (in.):
2.325 in.
Intake Valve Head Diameter (mm):
59.055 mm
Intake Valve Stem Diameter (in.):
0.342 in.
Intake Valve Stem Diameter (mm):
8.67mm
Intake Overall Valve Length (in.):
6.590 in.
Intake Overall Valve Length (mm):
167.386mm
Undercut Stem:
No
Swirl-Polished:
Yes
Valve Tip Length (in.):
0.250 in.
Valve Tip Length (mm):
6.350mm
Valve Material:
NK-844 stainless steel
Lock Groove Quantity:
1-groove
Lock Groove Style:
Conventional
Approximate Weight (g):
165
Valve Head Style:
5 degree dish
Valve Seat Width (in.):
0.075 in.
Quantity:
Sold individually.
Manley Severe Duty Series Stainless Steel Valves
Manley Severe Duty 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 are available with either undercut "Pro Flo" stems or straight stems.
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