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Manley Severe Duty Series Stainless Steel Valves 11230-1
Part Number: MAN-11230-1
Manley Severe Duty Series Stainless Steel Valves
Valve, Intake, Stainless Steel, 1.940 in. Diameter, .311 in. Stem, 5.010 in. Length, Chevy, Each
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Estimated Ship Date: Nov 2, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11230-1
Part Type:
Product Line:
Summit Racing Part Number:
MAN-11230-1
UPC:
807298047980
Valve Position:
Intake
Intake Valve Head Diameter (in.):
1.940 in.
Intake Valve Head Diameter (mm):
49.276 mm
Intake Valve Stem Diameter (in.):
0.311 in.
Intake Valve Stem Diameter (mm):
7.90mm
Intake Overall Valve Length (in.):
5.010 in.
Intake Overall Valve Length (mm):
127.254mm
Undercut Stem:
No
Swirl-Polished:
No
Valve Material:
NK-844 stainless steel
Approximate Weight (g):
105
Valve Head Style:
7 degree dish
Valve Seat Width (in.):
0.080 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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