i was wondering if a borg warner t5 5 speed will hold up to 450hp and about 500lbs of torque... building my first race car and trying to figure out a drive train

 

Hell no. It will strugle to handle a 305. Go with a t56.

 

yea, a stock t5 will handle 500 ft/lbs for a couple seconds

 

Dont fix it until its broke.

 

OK, ill tell you, my T5 is behing a 383 with fully ported and polished heas, 10 to 1, XE cam with 238/242 duration, RPM air gap and a holley 750. It is alive so far for some reason, no problems, but i am on radials and a stock clutch. I dont power shift ither. My setup should be around 500 HP. I whooped a 02 firehawk feom a dig, i even have 2.73 with posi, so yea, some hold up to a real motor, some go down in flames behind a 5 litre boat anchor. Sooo....do you feel lucky punk...well do ya? LOL

 

use the clutch, dont dump it at 4000rpm's and I'm sure it will last some time

 

if it is good shape, it will hold for a while. When it breaks there will likely be nothing left to save, except the shifter. A "beefed" T5 will handle it a bit longer, but will still break, again leaving nothing but the shifter.

If you're looking for race only, kick up an old-school 4-speed. Simplicity and strength for much less than a good T56. If you want to highway it, look into a good T56 or TKO. Personally, I don't like the TKO because it won't powershift.