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Valves, Exhaust, Stainless Steel, 1.500 in. Diameter, .341 in. Stem, 4.911 in. Length, Chevy, Set of 8
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Estimated Ship Date: Nov 2, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
10777-8
Part Type:
Product Line:
Summit Racing Part Number:
MAN-10777-8
UPC:
807298047577
Valve Position:
Exhaust
Exhaust Valve Head Diameter (in.):
1.500 in.
Exhaust Valve Head Diameter (mm):
38.100mm
Exhaust Valve Stem Diameter (in.):
0.341 in.
Exhaust Valve Stem Diameter (mm):
8.66mm
Exhaust Overall Valve Length (in.):
4.911 in.
Exhaust Overall Valve Length (mm):
124.739mm
Undercut Stem:
No
Swirl-Polished:
Yes
Valve Tip Length (in.):
0.250 in.
Valve Tip Length (mm):
6.350mm
Valve Material:
XH-424 stainless steel
Lock Groove Quantity:
1-groove
Lock Groove Style:
Conventional
Approximate Weight (g):
96
Valve Head Style:
10 degree dish
Valve Seat Width (in.):
0.100 in.
Quantity:
Sold as a set of 8.
Manley Street Master Valves
Manley Street Master valves are excellent-quality valves at an affordable price. All are made from stainless steel (intakes are NK-841; exhausts are XH-424) with chrome stems and hardened valve tips. Street Master series valves are fully machined and swirl polished, and both the materials used and the heat-treating process are superior to those of the Budget replacement series valves. They're available in a variety of head diameters, with either straight or undercut stems for increased flow. Order the set that's compatible with your vehicle 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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