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Manley Severe Duty Series Stainless Steel Valves 11533-1
Part Number: MAN-11533-1
Manley Severe Duty Series Stainless Steel Valves
Valve, Exhaust, Severe Duty, Stainless Steel, 1.940 in. Diameter, 0.3715 in. Stem, 5.464 in. Length, Each
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11533-1
Part Type:
Product Line:
Summit Racing Part Number:
MAN-11533-1
UPC:
807298049717
Valve Position:
Exhaust
Exhaust Valve Head Diameter (in.):
1.940 in.
Exhaust Valve Head Diameter (mm):
49.276mm
Exhaust Valve Stem Diameter (in.):
0.372 in.
Exhaust Valve Stem Diameter (mm):
9.44mm
Exhaust Overall Valve Length (in.):
5.464 in.
Exhaust Overall Valve Length (mm):
138.785mm
Undercut Stem:
No
Swirl-Polished:
Yes
Valve Tip Length (in.):
0.220 in.
Valve Tip Length (mm):
5.588mm
Valve Material:
XH-428 stainless steel
Lock Groove Quantity:
1-groove
Lock Groove Style:
Conventional
Approximate Weight (g):
145
Valve Head Style:
7 degree dish
Valve Seat Width (in.):
0.100 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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