Bolting a TH350 or 700R4 behind an LS engine takes more than a bellhousing. LS cranks sit 0.400 inch deeper in the block and use their own bolt pattern, so only an LS-specific flexplate works. This Advance Adapters kit has everything needed to make the connection right.
Features
- 168-tooth flexplate dished to match the recessed LS crankshaft
- Crank spacer compensates for the shorter LS crank stick-out
- 11mm flexplate bolts included
- Keeps proper torque converter spacing and pilot depth
What is included
- LS flexplate for TH350 / 700R4
- Crank spacer
- 11mm flexplate bolts
Fitment
- Gen III and Gen IV LS engines (4.8, 5.3, 5.7 LS1, 6.0, 6.2) to GM TH350 and 700R4 automatics
Good to know
- May not work on every LS engine. A 6.0L with cast iron heads and a 1999-2003 4.8L paired only to a manual transmission do not have a recessed crank
- LS7, LS9, LSA and LSX engines use an 8 bolt crank and need different parts
Not sure this fits your build? Send us your vehicle, engine and transmission and we will confirm fit before you order.