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    AFR Big Block Chevy / Ford Viton Valve Stem Seal Set, 0.344in Stem, Positive Stop | 6613-16

    Part Number: 6613-16
    Regular Price $30.00

    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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    AFR's valve stem seal set includes 16 Viton positive-stop seals sized for 0.344in valve stems and 0.495in guides, fitting Big Block Chevy and Big Block Ford AFR cylinder heads.

    Specifications:

    • Type: Positive Stop
    • Valve Stem Diameter: 0.344 in
    • Guide Diameter: 0.495 in
    • Material: Viton
    • Quantity: Set of 16
    • Part Number: 6613-16

    Applications:

    • Big Block Chevy
    • Big Block Ford

    FAQ

    What engine platforms does this seal set fit?

    Big Block Chevy and Big Block Ford AFR cylinder heads.

    What type of seal is it?

    A positive-stop design.

    What valve stem and guide diameter does it fit?

    0.344 in stem, 0.495 in guide.

    What material is it made from?

    Viton.

    How many seals come in this set?

    A set of 16, enough for one 8-cylinder valvetrain.

    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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