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Product Summary

C4, 14.24" Outside Diameter, 164 Tooth Count

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    Key Specs

    MFG. Part #50237
    BrandB&M
    Tooth Count164
    SFI RatingNot SFI-approved
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    Need To Know

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    B&M 50237 Details

    Ford Non-SFI replacement flexplate is ideal for street applications or extreme duty racing and high RPM (above 6,000) use. Fits 1968 to 1981 Ford small block 289-351C with C4 automatic transmission. Has a 11.4 in. bolt pattern, 164 teeth and a 28.2 Oz. balance weight. B&M's new Radial Tension Technology puts a new spin on flexplate technology. As engine performance levels increase, stronger flexplates become necessary. Until this point, stronger flexplates meant thicker flexplates. This works, but it adds unwanted weight and prohibited the flexplates from working as it was designed. Flexplates are designed to provide a protection against converter and transmission run out or OEM misalignment, which will cause transmission andor converter failure. A rigid flexplate gives no protection. The ultimate design for a flexplate is extreme strength, flexibility and minimal weight. B&M's new RTT performance flexplate accomplishes this goal. B&M's design allows for the removal of unnecessary material from non-critical stress areas. Less material means less weight giving you the benefits of a lightweight, flexible design with thicker material for maximum strength!

    • NHRA and IHRA Legal For All Classes
    • Ideal For Street Applications
    • To Extreme Duty Racing
    • To High RPM Use

    Application

    Fits 1968 to 1981 Ford Small Block 289, 302, 351W and 351C cid engines with a C4 automatic transmission. Has an 11.4 inch bolt circle , 28.2 Oz. balance weight and 164 tooth ring gear.

    Rebates

    Holley IRS Sale 2026

    Save 10% instantly on select products across the Holley family of performance brands during the annual Holley I.R.S.Tax Sale. Instant rebate period has been extended and now runs from February 17, 2026 through April 19, 2026.

    B&M 50237 Specifications

    KEY SPECS
    MFG. Part #50237
    BrandB&M
    Tooth Count164
    SFI RatingNot SFI-approved
    GENERAL
    Outside Diameter14.24"
    Weight6 lbs.
    Sold in QuantityEach
    GTIN Code019695502379
    Crankshaft Bolt Hole Count6
    Dual PatternYes
    NHRA LegalYes
    IHRA LegalYes
    Customer Impersonation Script