Manley Performance Exhaust Valve - 11661-8

Brand: Manley Performance

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Part Number: 11661-8
Part Location: U.S.
Availability: *Special Order
Delivery: Up to 2 Weeks
If purchased before 12:00 EDT - estimated delivery by July 17

Retail: $480.89

Price: $457.99

You Save: $22.90

Color

Silver

Engine Compatibility

Chevy Small Block LS Series

Finish

Polished

Head Diameter

1.590 Inch

Installed Height

Stock

Material

Stainless Steel

Quantity

Set Of 8

Stem Diameter

0.3136 Inch

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Manley Performance Exhaust Valve

Exhaust Valve; Severe Duty; For Use With GM LS3/ L99 Engines; 1.590 Inch Head Diameter; 0.3136 Inch Stem Diameter; Stock Installed Height; XH-428 Stainless Steel; Set Of 8

MPN: 116618

The Severe Duty® series of valves is the Manley signature in the performance and racing industry. Exhaust material XH-428 and intake material NK-844 is offered by no competitor in the world. And no pair of materials show such clear dominance over all others. Ultimate tensile strength of XH-428 at 1500 Degree Fahrenheit is nearly double the competitors’ EV-8. At 1000 Degree Fahrenheit the Manley NK-844 displays more than four times the ultimate tensile of the competition’s best intake material.

Engine Compatibility: Chevy Small Block LS Series

Head Diameter: 1.590 Inch

Stem Diameter: 0.3136 Inch

Installed Height: Stock

Finish: Polished

Color: Silver

Material: Stainless Steel

Quantity: Set Of 8

Features

XH-428 Stainless Exhaust Material
NK-844 Stainless Intake Material
Swirl Polished And Machined
Intakes Are “Pro Flo” For Improved Flow
O.E. Style Radius Keeper Grooves
Limited 90 Day Warranty

Specifications of Manley Performance Exhaust Valve - 11661-8
Color	Silver
Engine Compatibility	Chevy Small Block LS Series
Finish	Polished
Head Diameter	1.590 Inch
Installed Height	Stock
Material	Stainless Steel
Quantity	Set Of 8
Stem Diameter	0.3136 Inch