TCI 399753 LS1 Flexplate, 168-Tooth, 1-Piece Rear Main Seal

GM LS1 168-Tooth Internal Balance Flexplate

GM LS1 168-Tooth Internal Balance Flexplate 

Flexplate, 168-Tooth, Internal Engine Balance, 1-Piece Rear Main Seal, SFI 29.1, Chevy,

Flexplates are .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 these flexplates resist 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 and are SFI 29.1 approved.

Fits internally balanced Chevy 4.8, 5.3, 5.7, 6.0 LS1/LS6-series V8 engines.

For 4L80E applications, use P/N 399754.

Will not fit 4L80 transmissions. Includes crankshaft bolts and crankshaft hub adapter for use when installing an early, non-LS transmission. This will not fit 1999-2000 6.0L applications with 0.400 in. extended crank flange and came with flat flexplate.

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  • Will not fit 4L80-E
  • Will not fit 1999-2000 6.0L with long snout crank

TCI 399753 - TCI Heavy-Duty Flexplates


TCI 399753 LS1 Flexplate, 168-Tooth, 1-Piece Rear Main Seal
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  • Item #: TCI 399753
  • Manufacturer: TCI
  • Condition: New
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Price $289.95
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