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    • TCI SFI Flexplate | GM LS Wide Bolt Pattern Internal Balance 168-Tooth | 399754
    • TCI SFI Flexplate | GM LS Wide Bolt Pattern Internal Balance 168-Tooth | 399754
    • TCI SFI Flexplate | GM LS Wide Bolt Pattern Internal Balance 168-Tooth | 399754
    • TCI399754.jpg

    TCI SFI Flexplate | GM LS Wide Bolt Pattern Internal Balance 168-Tooth | 399754

    Vendor: TCI Automotive
    Part Number: 399754
    Regular Price $375.95

    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.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    The TCI 399754 is a machined flexplate for GM LS series engines including the 4.8, 5.3, 5.7, and 6.0. It is internally balanced with a 168-tooth ring gear and an 11.1in wide bolt circle. The unit is SFI 29.1 approved. For the LS or GM small bolt pattern at 10.75in, see part number 399753.

    • Application: GM LS 4.8, 5.3, 5.7 and 6.0 engines
    • Balance: Internal
    • Ring gear: 168 tooth
    • Bolt circle: 11.1in wide
    • Construction: Machined
    • Certification: SFI 29.1 approved
    • Part number: 399754

    FAQ

    Which engines does the TCI 399754 flexplate fit?

    It fits GM LS series engines including the 4.8, 5.3, 5.7, and 6.0.

    What bolt circle does the 399754 use?

    It uses an 11.1in wide bolt circle with a 168-tooth ring gear.

    How does the 399754 differ from the 399753?

    The 399754 uses the wide bolt circle, while the 399753 uses the 10.75in small bolt pattern.

    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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