• ALL38084.jpg
    • Allstar Performance Motor Mount Adapter LS to SBC — Adjustable, Aluminum Pair | ALL38084
    • Allstar Performance Motor Mount Adapter LS to SBC — Adjustable, Aluminum Pair | ALL38084
    • Allstar Performance Motor Mount Adapter LS to SBC — Adjustable, Aluminum Pair | ALL38084
    • ALL38084.jpg

    Allstar Performance Motor Mount Adapter LS to SBC — Adjustable, Aluminum Pair | ALL38084

    Vendor: Allstar Performance
    Part Number: ALL38084
    $69.99

    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:
    View Full Details
    Product DetailsFAQReviewsRelated Products

    These Allstar Performance aluminum adapters allow an early GM 3-bolt motor mount to bolt to a late model LS style block with a 4-bolt pattern. The adapters position the early mount in approximately the same location as found on original small block/big block Chevy engines and include optional holes for moving the engine forward up to 2-1/4 inches for additional firewall clearance. Sold in pairs and includes mounting hardware.

    Spec Sheet: View PDF

    FAQ

    What does the ALL38084 adapter do?

    It allows an early GM 3-bolt motor mount to bolt to a late model LS-style 4-bolt block.

    How far can the engine be moved forward?

    The adjustable holes allow moving the engine forward up to 2-1/4 inches for additional firewall clearance.

    Is mounting hardware included?

    Yes, mounting hardware is included.

    What material are the adapters made from?

    They are aluminum with a black anodized finish.

    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.

    Related Products

    Recently Viewed