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    • MSD Chrysler 426/440 Cam Sync Plug, Hall-Effect EFI Sync Signal | 85231
    • MSD Chrysler 426/440 Cam Sync Plug, Hall-Effect EFI Sync Signal | 85231
    • MSD Chrysler 426/440 Cam Sync Plug, Hall-Effect EFI Sync Signal | 85231
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    • Chrysler Big Block 426, 440 Cam Sync Plug MSD'S Cam Sync Plugs Install In Place Of A Traditional Distributor MSD Ignition
    • Chrysler Big Block 426, 440 Cam Sync Plug MSD'S Cam Sync Plugs Install In Place Of A Traditional Distributor MSD Ignition
    • Chrysler Big Block 426, 440 Cam Sync Plug MSD'S Cam Sync Plugs Install In Place Of A Traditional Distributor MSD Ignition
    • Chrysler Big Block 426, 440 Cam Sync Plug MSD'S Cam Sync Plugs Install In Place Of A Traditional Distributor MSD Ignition
    • Chrysler Big Block 426, 440 Cam Sync Plug MSD'S Cam Sync Plugs Install In Place Of A Traditional Distributor MSD Ignition
    • Chrysler Big Block 426, 440 Cam Sync Plug MSD'S Cam Sync Plugs Install In Place Of A Traditional Distributor MSD Ignition
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    Sale!

    MSD Chrysler 426/440 Cam Sync Plug, Hall-Effect EFI Sync Signal | 85231

    Vendor: MSD
    Part Number: 85231
    Save $52
    Sale Price $415.95 Regular Price $467.95

    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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    MSD's cam sync plugs are designed for aftermarket sequential EFI systems with coil-per-cylinder ignition. The plug installs in place of a traditional distributor, providing a hall-effect cam sync signal so the EFI system can reference the #1 cylinder. It's plug-and-play with Holley EFI and interfaces easily with most other aftermarket EFI systems.

    Specifications:

    • Category: Ignition
    • Engine: Chrysler 426/440
    • Color: Black and Silver
    • Distributor Type: Cam Sync Plug
    • Sensor: Hall-Effect
    • Ignition Box Required: EFI
    • Shaft has a hardened, corrosion-resistant coating
    • Part Number: 85231

    FAQ

    What does the MSD 85231 cam sync plug do?

    It installs in place of a traditional distributor to provide a hall-effect cam sync signal referencing the #1 cylinder.

    Is the MSD 85231 compatible with Holley EFI?

    Yes, it's plug-and-play with Holley EFI and can also interface with most other aftermarket sequential EFI systems.

    What engine is the MSD 85231 designed for?

    It's designed for Chrysler 426 and 440 big block engines.

    Is the shaft protected against corrosion?

    Yes, the shaft has a hardened, corrosion-resistant coating for increased durability.

    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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