Hi Im looking to put a t56 in my car soon behind the 350 tpi i just swapped in< i was wondering besides not having to worry about blowing out the tranny as easily as my current T5 what are some of the performance benefits? my 350 is stock except for headers and 3 inch flowmaster exhaust. any imput is appreciated

Well, you get a 6th gear which is pretty nice!

so ill be getting more from the engine then is what you mean?

Owning a 350 TPI, I can't see the T5 holding up for long behind it. Not with all that low range torque. I don't see anything on your rear gear ratios, but 6th gear is known to be useless at anything less than highway cruising speeds with a rear gear below 3.4x, but if you're running a 3.42, 3.45 and up rear gear ratio it can be used more readily. But if you want a manual a T56 is certainly a good way to go. If its setup right you could see 1800 RPMs at 80 MPH cruising on the interstate. Fuel mileage would be a benefit more than actual performance I'd say.

You will get better gas mileage on the highway. That is about it.

Oh trust me I know the T% aint meant for the 350 lol but i only had money at the time to put the 350 in im still trackin down a t56, so untill then i havent been beating on the t5 that much but its bean nearly a year since the swap and its holding up well, but I do want the t56 for peace of mind and i plan on putting an lt1 350 in it in a couple of months and theres no way im doing that with just a t5 lol cuz what would be the fun in that? i can still kinda rip and roar with the t5 with my current setup but i wager i wont be able to get away with that with an lt1 with headers and stuff lol

I have the 3.73 gears in mine btw. Im really loving my current setup except for im sick of when i get up to high speeds the engine chokes out like TPI's are apt to do. so now i have my heart set on an lt1 t56 combo. ls1 t56 is just to far out range of my earnings and budget.

There are a lot of guys on here running a T5 behind a 350 and have been for a while.

yeah but I wouldn't want it behind an LT1 though

Problem I had with that was for every guy who doesn't have problems, there is another who says he goes through 4 T5s in 6 months. So if you intend to drive it hard I would just run a T56.

Agreed