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Manley Performance

Manley Ford 4.6L 38.5mm Race Master & Extreme Duty Exhaust Valves (Single)

$85.68 $64.26 Save $21.42

SKU: M004 11633-1

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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 11633-1

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.

Features:

    • 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.

Manley Valve - Exhaust, Valve-FD MOD E/D 38.5mm.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The Manley Performance Extreme Duty valve is a triple groove exhaust valve designed for Ford 4.6L and 5.4L SOHC 3-Valve engines. Constructed from XH-432 XtremeAlloy, it offers enhanced durability. The valve features a 38.5mm head diameter, chrome stem, and hard tips for increased longevity.

Fitment

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Specifications

BrandManley Performance
Part NumberM004 11633-1

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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