Manley Exhaust Valve 11567-8 — product image 1

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Manley Exhaust Valve, 1.500 in Head, 0.342 in Valve Stem, 4.911 in Long, Set of 8 — 11567-8

SKU: 11567-8

$301.07

Manley Exhaust Valve, 1.500 in Head, 0.342 in Valve Stem, 4.911 in Long, Set of 8 — 11567-8

Designed for Small Block Chevy.
Manley Exhaust Valve, 1.500 in Head, 0.342 in Valve Stem, 4.911 in Long, Set of 8 — 11567-8

The valve seat width is 0.100 in.
Manley Exhaust Valve, 1.500 in Head, 0.342 in Valve Stem, 4.911 in Long, Set of 8 — 11567-8

The valve stem length is 0.250 in.
Manley Exhaust Valve, 1.500 in Head, 0.342 in Valve Stem, 4.911 in Long, Set of 8 — 11567-8

Supplied as a set of 8.
Manley Exhaust Valve, 1.500 in Head, 0.342 in Valve Stem, 4.911 in Long, Set of 8 — 11567-8

Uses a dish head.
6 In Stock - Ships in 1-3 days

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Manley Exhaust Valve, 1.500 in Head, 0.342 in Valve Stem, 4.911 in Long, Set of 8 — 11567-8

$301.07

$301.07

1.500 in

Valve Head Diameter

4.911 in

Valve Length

11/32 in

Valve Stem Diameter

Product Description

Manley Severe Duty Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400 degrees F, Manley exhaust valves endured 100 million cycles, while competitors failed after just 100,000, proving a 1,000 longer fatigue life. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Built for those who demand race-winning strength and precision, Manley Severe Duty Valves set the industry standard for performance and endurance.


Additional Details

The head style is dish. The valve head diameter is 1.500 in. The valve length is 4.911 in.

The valve stem diameter is 11/32 in. The valve stem length is 0.250 in. The weight is 92 g.

The valve seat width is 0.100 in. Construction uses XH-428 stainless with a swirl polish finish. Configuration: Small Block Chevy.


What’s Included

  • 8 × exhaust valves

Specifications

Type
Exhaust
Valve Head Diameter (in)
1.500 in
Valve Length (in)
4.911 in
Valve Stem Diameter (in)
11/32 in
Valve Stem Length (in)
0.250 in
Weight
92 g
Head Style
Dish
Valve Seat Width
0.100 in
Alloy
XH-428
Material
Stainless
Color
Natural
Finish
Swirl Polish
Quantity
Set of 8

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