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Manley Race Series Stainless Steel Valves for 1992-2010 VIPER - 11643-10
Part Number: MAN-11643-10
Manley Race Series Stainless Steel Valves
Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .311 in. Stem, 5.770 in. Length, Set of 10
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11643-10
Part Type:
Product Line:
Summit Racing Part Number:
MAN-11643-10
UPC:
807298017938
Valve Position:
Exhaust
Exhaust Valve Head Diameter (in.):
1.600 in.
Exhaust Valve Head Diameter (mm):
40.640mm
Exhaust Valve Stem Diameter (in.):
0.311 in.
Exhaust Valve Stem Diameter (mm):
7.90mm
Exhaust Overall Valve Length (in.):
5.770 in.
Exhaust Overall Valve Length (mm):
146.558mm
Undercut Stem:
No
Swirl-Polished:
Yes
Valve Tip Length (in.):
0.110 in.
Valve Tip Length (mm):
2.794mm
Valve Material:
XH-426 stainless steel
Lock Groove Quantity:
1-groove
Lock Groove Style:
Beadlock
Approximate Weight (g):
102
Valve Head Style:
12 degree dish
Valve Seat Width (in.):
0.100 in.
Quantity:
Sold as a set of 10.
Notes:
Underhead angle/radius 18 x .500 in. Margin 0.075 in.
Manley Race Series Stainless Steel Valves
Manley Race series performance valves are a great choice for your bracket, oval track, or high performance street engine. All valves are made from stainless steel (intakes are NK-842; exhausts are XH-426) with chrome stems and hardened valve tips. In addition to being made from high-quality materials, Race series valves are swirl polished and fully machined.
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