ctd to gm flex plate how strong?

[BCronk]

I am useing the cummins flywheel housing & flex plate with the gm bolt pattern. I was wondering how much hp/tq these pieces are good for. Will the allison 1000 bolt up to this?

 

[DKarvwnaris]

I am useing the cummins flywheel housing & flex plate with the gm bolt pattern. I was wondering how much hp/tq these pieces are good for. Will the allison 1000 bolt up to this?

I haven't played with the Allisons in pickup trucks yet, especially GM's so I can't offer you much help there.

I have seen GM fllex plates between 6. 5 diesels with stupid levels of horsepower. (usually the engines die before anything else gets damaged ). I have also run GM Automatics (t-350's, t-400's, 4l80e's) behind big block GM motors for racing and rock crawling. THe flexplates usually held up, the valve bodies were a different story though, even with a few 4bt conversion's I have done in the past. around 80,000 miles and the trannies were toast, but I was told it was the torque and vibration for the most part.