Head Diameter: 1.590 in. - Stem Diameter: 0.3136 in. - O/A : 4.923 in.
Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy marine enthusiasts, and Small Block Chevy restricted carburetor circle track competitors, these valves are your ticket to unparalleled performance.
  • Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.
  • XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material construction.
  • Built to Last: Featuring chrome stems and hard tips for exceptional longevity and wear resistance.
  • Optimized Performance: Swirl polished under head areas and fully machined combustion faces improve airflow and combustion efficiency.

Information:

Manley Valve - Exhaust, Valve-L-92 E/D 1.590.
Attributes
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category Hierarchy Valves>Extreme Duty, Valves>Stainless Steel>Extreme Duty
Country of Origin (Primary) CN
Cylinder Head L-92 Cylinder Head, L92 Cylinder Head
Emission Code Off Road
Engine LS-3, L-99, LS3, L99
Engine - Web LS-3, L-99, LS, L99
Engine Detail - Web LS-3, L-99, LS3, L99
Engine Family LS, L-99, LS, L99
Engine Type ICE, ICE
Engine Valve Quantity 8, 8
Hazardous Material Code N
Head Diameter 1.590, 1.590
Industry Automotive, Automotive
Life Cycle Status Code Available to Order
Make Chevrolet, Chevrolet
Make - Web Chevrolet, Chevrolet
Margin Width 0.070, 0.070
O/A Length 4.923, 4.923
Out of Stock Message Call for Availability, Call for Availability
Product Market Domestic, Domestic
Product Type Engine Exhaust Valve Kit, Engine Exhaust Valve Kit
SDR Required Flag N
Seat Width 0.115, 0.115
Stem Diameter 0.3136, 0.3136
Tip Length 0.160, 0.160
Title - Web Manley Extreme Duty Series Chevy L-99 Exhaust Valve Kit - 1.590 in. Head Dia., 4.923 in. O/A Length, 0.3136 in. Stem, Manley Extreme Duty Series Chevrolet L99 Exhaust Valve Kit - 1.590 in. Head Dia., 4.923 in. O/A Length, 0.3136 in. Stem
Top of Head 18 Degree Dish, 18 Degree Dish
Type Exhaust
Underhead Angle 25.00, 25.00
Underhead Radius 7/16, 7/16
Valve Head Diameter 1.590, 1.590
Valve Head Shape 18 Degree Dish, 18 Degree Dish
Valve Length 4.923, 4.923
Valve Material Inconel, Inconel
Valve Quantity 8, 8
Valve Series Extreme Duty Series, Extreme Duty Series
Valve Stem Diameter 0.3136, 0.3136
Valve Tip Length 0.160, 0.160
Valve Type Exhaust, Exhaust
Warranty Time 30
GTIN 00807298051123