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    Sale!

    Holley EFI Lo-Ram EFI Manifold, LS1/2/6 Satin Finish | 300-620

    Vendor: Holley EFI
    Part Number: 300-620
    Save $128
    Sale Price $1,021.95 Regular Price $1,149.95

    In Stock

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    This Lo-Ram intake manifold kit is designed for GM LS Gen III/IV engines with LS1/2/6 cathedral-port cylinder heads and is built for forced-induction (supercharged or turbocharged) applications. The low-profile base manifold is designed to package with a plenum-mounted air-to-water intercooler in a top-feed configuration.

    Specifications:

    • Engine: GM LS1/LS2/LS6 (cathedral port)
    • Manifold Type: Lo-Ram, top-feed, single injector
    • Finish: Natural/satin
    • Material: Cast aluminum
    • Basic Operating RPM Range: 3,500-8,000
    • Throttle Body Bore: 105mm, gasket included
    • Maximum Height: 9.07" without intercooler
    • Fuel Rails: High-volume, 3/4"-16 O-ring (-8AN) ports, mounting hardware included
    • Burst Panel Compatible: Yes
    • Recommended Use: Forced induction
    • Part Number: 300-620

    Fuel rail kits include two sets of brackets — one for standard-length injectors and one for short injectors (such as Pico or LS7).

    FAQ

    What cylinder heads does this manifold work with?

    It's designed for GM LS Gen III/IV engines with LS1/2/6 (cathedral port) cylinder heads, OE or aftermarket.

    Is this manifold intended for forced induction?

    Yes, it's designed for supercharged or turbocharged applications and pairs with a 105mm throttle body.

    Is this manifold burst panel compatible?

    Yes, this manifold is burst panel compatible.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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