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    Remflex Exhaust Header Gasket | Ford V8 256-312, Square Port | 3021

    Vendor: Remflex
    Part Number: 3021
    Save $10.14
    $40.56 $50.70

    Currently out of 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.
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    Product DetailsFAQReviewsRelated Products

    Remflex Exhaust Header Gasket for Ford 256-312 V8 engines with square-port heads. Made from 100% graphite, this gasket handles extreme exhaust heat and conforms to imperfect sealing surfaces for a lasting leak-free seal without repeated maintenance.

    • Material: 100% graphite
    • Heat resistant up to 3,000 degrees F
    • Built-in 50% crush fills gaps and surface imperfections up to 1/16 inch
    • Rebounds against the sealing surfaces, so it never needs re-torquing
    • Fits: Ford 256-312 V8 engines with square-port heads
    • Part number: 3021

    FAQ

    What does the 3021 gasket fit?

    The Remflex 3021 exhaust gasket fits Ford 256-312 V8 engines with square-port heads.

    Does this gasket need to be re-torqued?

    No. The graphite rebounds against the sealing surfaces after installation, so it does not require re-tightening once the fasteners are set to spec.

    Will it seal a warped or pitted surface?

    Yes. The built-in 50% crush lets it fill gaps and surface imperfections up to 1/16 inch.

    How much heat can it take?

    The 100% graphite construction is rated for continuous exhaust temperatures up to 3,000 degrees F.

    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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