Pairing a TH400 with an LS engine takes an LS-specific flexplate and the right crank spacing. This kit adapts Gen III LS engines to GM TH400 automatics.
Features
- LS flexplate dished to compensate for the recessed crank
- Crank spacer for correct crankshaft depth
- 11mm LS flexplate bolts
- 168-tooth flexplate
What is included
- Custom LS flexplate for TH400 / TH350
- Crank spacer
- 11mm Gen III bolts
Fitment
- Gen III LS engines (4.8L, 5.3L, 5.7L LS1, 6.0L, 6.2L) to GM TH400, 1965-1986, 2WD and 4WD
Not sure this fits your build? Send us your vehicle, engine and transmission and we will confirm fit before you order.