Skip to Product Info
    • 300-652_01.jpg
    • 300-652_02.jpg
    • 300-652_03.jpg
    • 300-652_04.jpg
    • 300-652_05.jpg
    • 300-652_06.jpg
    • 300-652_07.jpg
    Sale!

    Holley Intake Manifold Adapter Plates, Gen III Hemi 5.7L Billet | 300-652

    Vendor: Holley EFI
    Part Number: 300-652
    Save $54
    Sale Price $425.95 Regular Price $479.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    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.
    Payment & Security

    Secure, encrypted checkout. Card details go straight to the payment processor and are never stored by us.

    • Amazon
    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Share to:

    These billet aluminum adapter plates let early 2003-2008 5.7L Gen III Hemi engines, which have smaller intake ports, accept intake manifolds built with larger ports.

    Specifications:

    • Engine: Gen III Hemi 5.7L
    • Construction: Billet Aluminum
    • Finish: Natural
    • Thickness: .945"
    • Type: Adapter Plate
    • Hardware and Gaskets Included
    • Part Number: 300-652

    Designed to allow use of a Gen III Hemi Hi-Ram intake manifold on early small-port 5.7L Hemi engines.

    FAQ

    What is the purpose of these adapter plates?

    They allow larger-port intake manifolds, such as a Hi-Ram, to be installed on early 2003-2008 5.7L Gen III Hemi engines with smaller intake ports.

    What are they made of?

    They're billet aluminum with a natural finish, .945" thick.

    Does the kit include hardware?

    Yes, hardware and gaskets are included.

    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.

    Recently Viewed