LS Series flex plate kits allow you to fit the TH400/4L80 and aftermarket duaL pattern TH350/700R4 torque converters using 11 1/2" torque converter bolt pattern onto the 2002 and newer Gen III/IV LS engines.

This will not fit stock TH350 or 700R4 torque converters.

The kits include a custom flex plate, a crank spacer that compensates for the .400 shorter engine crank, and correct length ARP flexplate bolts. Steel 168 tooth internally balanced.

***   Designed for torque converters with 11.5" bolt circle  ***

* 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.

* Designed to be used with starters- GM 10465385, O'Reilly N613348A, Duralast DL9949S, AC Delco 336-1932A.

* This will not fit 1999-2001 LS applications with 0.400 in. extended crank flange.

* Not SFI-approved

** Flex Plate is marked "Engine Side"**