91 chevy ext. cab 5 speed...will iy hold up?

[superninja427]

I'm about to do some things to my truck such as vortec heads, intake, cam, and carb most likely. Will my stock 5 speed hold this or will it start breaking/tearing stuff up? If this will hold up I'm also thinking about putting a small turbo on it also..will it hold up this too?

 

[blue_92_sierra]

It should hold up, judging from your sig you have a 91 which means its a 700r4. Those tranny's are pretty good and i know some guys run 383 strokers with the 700r4, which is pushin 400+hp

 

[1997chevydriver]

His truck is a stick blue_92_sierra no 700r4 there

 

[Problem2420]

5 speeds are a rare breed in any car. some will take 400hp over and over and some will break at the first launch on 200hp..

 

[blue_92_sierra]

His truck is a stick blue_92_sierra no 700r4 there

Man i had to read that first post again, totally missed the part where he said 5 speed..

 

[MIHELA]

That's an HM290. It won't hold a lot more than stock.

 

[DRAGGIN95]

I had a friend with the light duty 5 speed behind a 350 in his 94, and with just small mod's, he grenaded it twice!

 

[MOBS]

I'm not sure of the specs on the other 5-speeds, but with any manual trans, it's not hp that blows them up, it's torque. HP is what blows up automatics. Now, the T-5 is rated at only 300lbs-ft(torque), which is just a bit over the rated engine torque on most the trucks that had T-5's. First you need to find the specs on that trans and see how much torque it'll hold....and that's ofcourse the max safe torque you'd apply to a NEW trans, with your's being 21yrs old, I wouldn't attempt any mods except tbi-related....not without a rebuild/replace of the trans.

 

[woody80z28]

During my 5spd research I read about a lot of blown up light duty ones...that's why I went NV4500.

 

[Tempted]

T-5 is crap. I've grenaded them on stock 80s 5.0 cars and I've grenaded T45(T-5 for the mod motors) on stock 4.6 motors. Doesn't matter if it is "World Class" or not, they suck.