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TCI

TCI SFI Approved LS1 Flexplate Camaro V8

MPN: 399753 Catalog #: 004050 Category: Flexplates And Components Check Vehicle Fitment

Product Details

  • SFI 29.1 approvedLightweight design for quick engine response
  • Made in the USA from plasma-cut, Blanchard-ground, billet steel plate
  • Includes mounting hardware
  • Dual bolt patterns, stock LS1 and small GM bolt pattern

    SFI 29.1 approved. Fits most LS-series Gen III and Gen IV Chevy 4.8, 5.3, 5.7, 6.0, 6.2 and 7.0 litre V8 engines using a 6 bolt crankshaft flange. Drilled for 10.75" small GM converter bolt pattern and also 11.062" (281mm) LS style converter bolt pattern. Includes a converter pilot adapter that is needed if you are using a converter originally made to fit older small or big block Chevy (non-LS). Flexplate is .035" thicker than stock and the starter ring is welded to both sides of the flexplate for additional strength. Constructed from a high tensile strength material this flexplate resists elongation and cracking. All 168 tooth flexplates are sized for stock 3/8" mounting bolts and can be easily drilled for 7/16" diameter high performance torque converter applications. For 4L80E or TH400 applications that have an 11.5" torque converter bolt pattern, use P/N 399754.

    This will not fit 1999-2000 6.0L applications with 0.400 in. extended crank flange and came with flat flexplate. This will not fit 1999-2000 4.8L applications that originally came with a manual transmission.

    Flexplate - 168 Tooth - SFI 29.1 - Steel - Internal Balance - GM LS-Series - Each

    TCI SFI Approved LS1 Flexplate Firebird V8

  • TCI SFI Approved LS1 Flexplate Camaro V8, TCI SFI Approved LS1 Flexplate Firebird V8

    GM Chevy LS Series Engine 6-bolt Crank SFI Flexplate with 10.75" and 11.062" Converter Patterns and Converter Pilot Extension Fits both LS transmissions and older Powerglide, TH350, 700R4, transmissions and converters behind LS engines

    ace safely with TCI's newest addition to our extensive flexplate line. The TCI 399753 flexplate fits 1998 and newer F-bodies with LS1 engine as well as ’99 and newer GM trucks with 4.8L, 5.3L and 6.0L LS based engines.

    Notes:

  • SFI 29.1 approved
  • Lightweight design for quick engine response
  • Made in the USA from plasma-cut, Blanchard-ground, billet steel plate
  • Includes mounting hardware
  • Dual bolt patterns, stock LS1 and small GM bolt pattern

  • Vehicle Fitment

    Please verify year, make, model, and any notes before ordering.

    Engine Compatibility

    GM - LSMatched variant: LS

    GM Gen III/IV V8; LS1/LS2/LS3/LS6/LS7/LS9/LSA/LSX

    Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

    Product Specs

    Brand
    TCI
    Part Number
    399753
    Catalog Number
    004050
    Product Line
    Flexplates And Components
    Category
    Transmission
    Type
    Flexplates And Components
    UPC / Barcode
    788120030274
    Length
    14.60 in
    Width
    14.30 in
    Height
    1.20 in
    Weight
    8.90 lb
    Freight / LTL
    175.00
    Ship Alone
    No
    Air Restricted
    No
    Hazmat
    No
    Chemical
    No
    Prop 65
    B
    Non-Returnable
    No
    Case Quantity
    1
    Kit
    No

    Shipping & Availability

    Current status 10 Available - Ready to ship
    Estimated timing Usually ships within 24hrs

    This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

    Inventory shown: 10 available as of 6/4/2026.

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