Originally Posted by nfswift
Hmm, yea, the auto is supposed to have more bojangles in it, but 500hp on stock trans-axle? Not a chance, if you go north of 250-275 ft-lbs of torque and bag on the stock tranny too much you can bet on de-toothing your gears in an awful hurry.
That trans-axle is built to withstand a 2.8L V-6 135HP Iron duke, not the sturdy supercharged L67, and NOT a torque-happy 5.7L V-8, I think the LQ1 twin-dual cam you already have is about as powerful as you can get while being able to COMPLETELY bag on car with a stock trans. You know, hard launches, clutch drops, violent shifting, drag-strip stuff.