Th400 swappers - cheap flex plate solution
Apt z270 flexplate
Its a brand new 6.0 flat flexplate, crank spacer, and bolts for around $50-$65. Much cheaper than using the over priced gm spacer and bolts with a curved ls1 or 5.3 flexplate! It allows for the use of a 11.5" th400 converter bolt circle, not the small th350 10.75 converter bolt circle that requires ovaling holes with a curved flex plate.

you can use the GM spacer with your existing 5.3 or ls1 curved flex plate but you need to oblong the bolt holes and run a th350 10.75 bolt circle torque converter.
6.0 flex plate installed =
spacer, flex plate, torque converter
5.3/ls1 curved flex plate =
flex plate, spacer, converter
make sense?
Last edited by 406chvycamaro; Sep 26, 2013 at 11:16 AM.
Not to be rude, but this isn't the classified forums.. please remove your post and place it in the classifieds area and someone will want it cheap for sure.
This post isnt selling anything. It just a listed part number for a conversion flex plate. Notice i didnt link the item to any vendor.
What is wrong with people helping out on this forum? I searched high and low looking for th400 swap info. I found this on a random page and thought i would share. If its offensive please remove it.
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Using a curved FP w spacer will cause starter and FP alignment issues. And possible tq converter issues.
The flat plate w spacer is best solution. On the cheap. if do not need sfi plate







