I am looking for a nice 3rd gen F Body to buy right now, and I know that when you get so much HP and torque, it's a good idea to add subframe connectors and a sturdier rear end to take all the extra stress. I was just wondering what is the limit HP and torque wise that the stock tranny, rear end, and subframe can take before you need a stronger rear end, tranny, and subframe connectors.

 

well sorry enough to say it depends on the driver. I have seen 500 HP w 450 Trq go onto a primarily stock system. Had rear end bracing, and LCA, Panhard, SFC and torque arm. that was about it. I think it had a built tranny. This was in 92 z too... This was not a racer either...
If your racing do the whole schabang. SFC, Torque arm, LCA, panhard, Rear end(with a brace or pro built), tranny and gears...