Manley Race Series Stainless Steel Valves 11521-8

Name: Manley Race Series Stainless Steel Valves
Brand: Manley
SKU: MAN-11521-8
Price: 188.99 USD
Availability: InStock
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Part Number: MAN-11521-8

$188.99

Manley Race Series Stainless Steel Valves

Valves, Exhaust, Stainless Steel, 1.500 in. Diameter, Chevy, Small Block, Chevy, Set of 8
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Manley Race Series Stainless Steel Valves 11521-8

MAN-11521-8

Not Yet Reviewed

Part Number: MAN-11521-8

Estimated Ship Date from OH, GA, TX: Monday 10/19/2026

$188.99

Overview

Applications

Q&A

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Overview

Brand:

Manley

Manufacturer's Part Number:

11521-8

Part Type:

Valves

Product Line:

Manley Race Series Stainless Steel Valves

Summit Racing Part Number:

MAN-11521-8

UPC:

807298049489

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:

Yes

Swirl-Polished:

Yes

Valve Tip Length (in.):

0.250 in.

Valve Tip Length (mm):

6.350mm

Valve Material:

XH-426 stainless steel

Lock Groove Quantity:

1-groove

Lock Groove Style:

Conventional

Approximate Weight (g):

Valve Head Style:

7 degree dish

Valve Seat Width (in.):

0.100 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.

Applications