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Ordered a Circle D 278mm 3000-3200rpm stall convertor for my 80e swap! Hopefully it will be here Monday. I also ordered a TCI flexplate SFI rated. Part #399753, this one is a direct replacement for the ls1 flexplate. If you want to go with one that has the pattern for a 4l80e, then order part #399754.
I had to order this TCC switch from PSIConversion, since I wasn't aware I needed it when I ordered my harness.
Got the Circle D stall convertor in the other day. It's a 278mm 3000-3200 rpm with the 3 bolt pattern for the ls1 flexplate. Also got the TCI flexplate #399753.