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    • Cap-A-Dapt Kit For Chevy V8 Spark Plug Style Terminals Are Used On The Cap For Tight Connections That Will Not Vibrate Loose MSD Ignition
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    Sale!

    MSD Cap-A-Dapt Kit, Chevy V8, Ford-Style Cap & Rynite Rotor | 8420MSD

    Vendor: MSD
    Part Number: 8420MSD
    Save $17
    Sale Price $134.95 Regular Price $151.95

    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.
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    This Cap-A-Dapt Kit adapts a large, Ford-style cap onto an MSD Chevy V8 distributor, spacing the spark plug terminals farther apart to lessen the chances of cross-fire and ionization. The rotor is injection molded from Rynite for strength and resistance to spark, with thick vanes to stir the air inside the cap for further ionization prevention.

    Specifications:

    • Fits: Most MSD Pro-Billet Distributors (Except Ford FE, PN 8594)
    • Color: Red
    • Product Type: Distributor Cap and Rotor Kit
    • Includes: Cap with Brass Terminals, Rotor, Cap Spacer
    • Quantity: 1
    • Warranty: Manufacturer's Limited 1-Year Warranty
    • Part Number: 8420MSD

    FAQ

    What distributors does the Cap-A-Dapt Kit fit?

    Most MSD Pro-Billet Distributors, with the exception of the Ford FE (PN 8594).

    What's included in the kit?

    A high-quality cap with brass terminals, a rotor, and a cap spacer.

    Why use a Ford-style cap on an MSD distributor?

    The larger cap spaces the spark plug terminals farther apart, reducing the chances of cross-fire and ionization.

    What is the rotor made from?

    It's injection molded from Rynite for strength and spark resistance.

    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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