Exhaust Valve - Extreme Duty - 1.590 in Head - 0.313 in Valve Stem - 4.923 in Long - Stainless - L62 / L92 - GM LS-Series - Set of 8

Valve - Exhaust

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.

Additional Information

Head Diameter: 1.590 in. - Stem Diameter: 0.3136 in. - O/A : 4.923 in.

Part Type

Engine Exhaust Valve

• Built to Last: Featuring chrome stems and hard tips for exceptional longevity and wear resistance.
• 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.
• Optimized Performance: Swirl polished under head areas and fully machined combustion faces improve airflow and combustion efficiency.
• XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material construction.

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Reference Information

Valves, Exhaust, Extreme Duty Series, Stainless, 1.590 in. Diameter, 0.314 in. Stem, Chevy, 6.2L, Set of 8

Manley Extreme Duty Series performance steel valves are a great choice for supercharged, alcohol-burning, or high-revving engines. These engines generate a lot of heat and require special valves that can handle that kind of punishment. All valves are made from the best stainless steel available, with chrome stems and hardened valve tips. Extreme Duty Series valves are swirl-polished and fully machined and available with either undercut heads or straight stems.