I've had a T5-Z behind my 408W Stroker for two years and no problems!!
I don't beat it to death or drag race but I've run it pretty hard with fat BFG's on the rear......The key is not to miss third and the fact that the tires will break loose in a light car before the "Terminal" torque numbers are reached??
Do it.....BTW, you can have a T5-Z built to stand about anything you can put in front of it!! If it should break you can do that and save the $$$'s you would spend on the 3550??
Coosawjack
