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Valves, Intake, NK-842 Stainless, 2.250 in. Diameter, .3415 in. Stem, 5.344 in. Length, Set of 8
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11814-8
Part Type:
Product Line:
Summit Racing Part Number:
MAN-11814-8
UPC:
807298053110
Valve Position:
Intake
Intake Valve Head Diameter (in.):
2.250 in.
Intake Valve Head Diameter (mm):
57.150 mm
Intake Valve Stem Diameter (in.):
0.342 in.
Intake Valve Stem Diameter (mm):
8.67mm
Intake Overall Valve Length (in.):
5.344 in.
Intake Overall Valve Length (mm):
135.738mm
Undercut Stem:
No
Swirl-Polished:
Yes
Valve Tip Length (in.):
0.250 in.
Valve Tip Length (mm):
6.350mm
Valve Material:
NK-842 stainless steel
Lock Groove Quantity:
1-groove
Lock Groove Style:
Conventional
Approximate Weight (g):
132
Valve Head Style:
5 degree dish
Valve Seat Width (in.):
0.080 in.
Quantity:
Sold as a set of 8.
Manley Race Master Valves
Manley Race Master valves are designed and engineered to withstand the abuse of the track. Race Master valves are targeted by the bracket, drag, and oval track racers, or even those with modified street engines that are operating at engine speeds below 8,000 rpm. These valves are constructed from XH-426 material for the exhaust and NK-842 for the intake valves, making them the strongest valves in their class. Whether everything is on the line at the track, or you just enjoy your high performance car or motorcycle on the street, trust Race Master valves by Manley to keep you on the move. Order the model designed for your vehicle year/make and engine application.
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Some parts are not legal for use in California or other states with similar laws / regulations
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