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Manley Race Series Gen II Custom Valves
Valves, Exhaust, Stainless Steel, 1.457 in. Diameter, .274 in. Stem, 4.800 in. Length, Set of 8
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Estimated Ship Date: Dec 2, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11247-8
Part Type:
Product Line:
Summit Racing Part Number:
MAN-11247-8
UPC:
807298001883
Valve Position:
Exhaust
Exhaust Valve Head Diameter (in.):
1.457 in.
Exhaust Valve Head Diameter (mm):
37.000mm
Exhaust Valve Stem Diameter (in.):
0.274 in.
Exhaust Valve Stem Diameter (mm):
6.96mm
Exhaust Overall Valve Length (in.):
4.800 in.
Exhaust Overall Valve Length (mm):
121.920mm
Undercut Stem:
No
Swirl-Polished:
Yes
Valve Material:
XH-426 stainless steel
Valve Head Style:
9 degree dish
Valve Seat Width (in.):
0.100 in.
Quantity:
Sold as a set of 8.
Manley Race Series Gen II Custom Valves
Do you have a boosted, high-heat, high-horsepower engine? Manley offers custom race valves for your high performance engine. These Race Series Gen II custom valves are manufactured from XH-426 (exhaust) and NK-842 (intake) materials with hard tips and hardened grooves. They are tailored to length, groove position, head diameter, margin, and other specifications that you request when ordering. So, whether you're building an engine or are a serious racer, Manley is committed to seeing that you're there at the finish.
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Some parts are not legal for use in California or other states with similar laws / regulations
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