Manley Race Series Stainless Steel Valves 11621-8

5 out of 5 stars ( 3 )

Part Number: MAN-11621-8

$202.99

Valves, Exhaust, XH-426 Stainless, 1.59 in. Diameter, .3136 in. Stem, 4.923 in. Length, Chevy, Set of 8
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Manley Race Series Stainless Steel Valves 11621-8

Manley Race Series Stainless Steel Valves 11621-8

MAN-11621-8

5 out of 5 stars ( 3 )

Part Number: MAN-11621-8

Estimated Ship Date: Monday 10/19/2026

$202.99

Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?

Overview

Brand:
Manufacturer's Part Number:
11621-8
Part Type:
Product Line:
Summit Racing Part Number:
MAN-11621-8
UPC:
807298051192
Valve Position:
Exhaust
Exhaust Valve Head Diameter (in.):
1.590 in.
Exhaust Valve Head Diameter (mm):
40.386mm
Exhaust Valve Stem Diameter (in.):
0.314 in.
Exhaust Valve Stem Diameter (mm):
7.97mm
Exhaust Overall Valve Length (in.):
4.923 in.
Exhaust Overall Valve Length (mm):
125.044mm
Undercut Stem:
No
Swirl-Polished:
Yes
Valve Tip Length (in.):
0.160 in.
Valve Tip Length (mm):
4.064mm
Valve Material:
XH-426 stainless steel
Lock Groove Quantity:
1-groove
Lock Groove Style:
Conventional
Approximate Weight (g):
93
Valve Head Style:
18 degree dish
Valve Seat Width (in.):
0.115 in.
Quantity:
Sold as a set of 8.

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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