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High-Quality Valley Covers for LS Engines

Billet and Trussed Valley Covers for Gen 3, Gen 4, and Gen 5 LS Engines

Ensure the reliability and longevity of your LS engine with our selection of premium valley covers. Designed for both Gen 3 and Gen 4 LS engines, these covers offer enhanced sealing, durability, and heat resistance. Available in natural billet, black billet, and trussed designs, our valley covers provide a sleek, high-performance solution for replacing factory components.

Whether you're upgrading or maintaining your engine, these valley covers come equipped with gaskets, bolts, and oil-fill provisions for added convenience. For Gen 5 LT engines, we also offer AFM delete valley covers to support performance modifications. Perfect for high-performance builds, these valley covers ensure your LS engine runs cooler and stays well-protected during demanding conditions.

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    HOLLEY LS VALLEY COVER - GEN 3 - NATURAL BILLET

    SKU: 241-260
    241-260
    $149.95
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    HOLLEY LS VALLEY COVER - GEN 3 - BLACK BILLET

    SKU: 241-262
    241-262
    $175.95
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    HOLLEY LS VALLEY COVER - GEN 4 - TRUSSED

    SKU: 241-263
    241-263
    $155.95
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    HOLLEY LS VALLEY COVER - GEN 4 - TRUSSED

    SKU: 241-265
    241-265
    $175.95
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    HOLLEY LS VALLEY COVER WITH OIL FILL - GEN 4 - BLACK BILLET

    SKU: 241-362
    241-362
    $237.95
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    HOLLEY LS VALLEY COVER WITH OIL FILL - GEN 3 - NATURAL BILLET

    SKU: 241-367
    241-367
    $212.95
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    HOLLEY LS VALLEY COVER WITH OIL FILL - GEN 3 - BLACK BILLET

    SKU: 241-369
    241-369
    $237.95
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    MR. GASKET VALLEY COVER BOLT SET - STAINLESS STEEL

    SKU: 60920G
    60920G
    $30.70
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    MR. GASKET VALLEY COVER GASKET - GEN 3 - MOLDED RUBBER WITH ALUMINUM CARRIER

    SKU: 61020G
    61020G
    $35.82
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    GM L92 Truck Valley Cover, No PCV Provision

    SKU: GM-12598832
    GM-12598832
    $72.99
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    GM LS3 Valley Cover, Includes Bolts & Gasket

    SKU: GM-12599296
    GM-12599296
    $429.99
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    TSP Gen 5 LT4 AFM Delete Valley Cover

    SKU: TSP-G5LT4VC-Black
    TSP-G5LT4VC-Black
    $196.99
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    TSP Gen 5 LT AFM Delete Valley Cover LT1 L83 L86

    SKU: TSP-G5VC-BLACK
    TSP-G5VC-BLACK
    $196.99

Questions About Valley Covers

What does a valley cover do in an LS engine?

A valley cover seals the engine’s lifter valley, preventing debris, dirt, and oil from entering the internal components while maintaining proper pressure and sealing.

Why should I upgrade to a billet or trussed valley cover?

Billet and trussed valley covers offer improved strength, durability, and cooling compared to stock covers, making them ideal for high-performance or modified LS engines.

What is an AFM delete valley cover?

AFM (Active Fuel Management) delete valley covers are designed to remove the AFM system in Gen 5 LT engines, allowing for full-time V8 performance without cylinder deactivation.

Will upgrading my valley cover improve engine cooling?

Trussed valley covers can help with heat dissipation by providing additional rigidity and airflow, which may contribute to better overall engine cooling.

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