Ok here is the problem I have a 6.0 with a 80E combo which came out of a 2000 silverado, and a PI 3200 Converter. I have the flexplate that is flat. It looks more like the old LT1 styles. I measured the bolt pattern and what the stock uses is the 11.5 pattern. I sheered one of the bolts that is on the 11.5 inch pattern... so I am running on two bolts. The converter does also have the 10.75 pattern, but my flywheel does not.

So the question is can I find a flexplate that is flat (not the LS1 with the 11 inch pattern) has the 10.75 pattern and will bolt to my crank.

I did find one but it does not bolt to my LS1 crank.

 

HMM I am wondering if this might work, anyone have any ideas...

https://www.performancetrucks.net/fo...r+bolt+pattern

Post 22 from XLR8NSS

 

I am really thinking that this SBC plate might work , anyone know where to get them, and do you have a part number. Also I am thinking the TCi might work but I am not to sure. XLR mentioned it being flat but having the deminsions similar to that of the bent plate.