the 383 will have 440 tq and 400 hp. car is an 86 z28. dont care if its t5 or t56.

 

T5 isn't rated for that kind of torque, so it will wear out the tranny quicker then it normally would,
but you don't usually break stuff unless you are getting traction,
but even a T56 will break with traction

 

I'd go with a built T-56

 

i second that notion

 

http://www.richmondgear.com/index.html

 

Also: http://www.tremec.com/English/products/TKO.asp#Car

 

If you don't need overdrive get a Muncie 4 speed

 

either jegs or summit have a t5 listed that is upgraded to handle alot more power. one is 500#s and the other is 600#s of torque. they are listed for the mustang, but there's got to be some built for the fbody (or maybe they are interchangable...not sure)

 

Tremec,
probably the route I'm going when my 383 is done

http://www.5speedtransmissions.com/

 

Not bashing but for those prices, a built T-56 would be as good if not better an option IMHO. I am a huge fan of that 6th gear for cruising.........

Again, not picking on your choice at all, just pointing out that for $1700-2000 you could have a pretty sturdy T-56 with cash left over.

 

I like the idea of overdrive too,
thats why I want Tremec instead of Richmond,

T56 is not a great tranny, not a bad tranny but I know lots of guys that have blown them up, even built,
I got a 95 Z28 with a blower and it took out a stock 6 speed without problems
I beleive they can only handle in the neighbourhood of 450ft.pds built
I was looking at the 600ft.pd Tremec with a .64 OD which is more then enough,

but who knows, when I got the cash in my hand if a T56 pops up, I might go that route

my motor will be around 450-500hp N/A and 500pd.ft with out the nitrous

probably going to back it with a Ford 9", don't think my 9 bolt with last very long

 

Guess I am lucky, there is a local guy here who does wonders with T-56's. Well beyond 450 ft/lbs.

 

agreed, 450 ft/lbs is stock, built can take much more

 

stalled turbo 400

 

richmond makes an overdrive. it's called the "Richmond Overdrive" actually or ROD for short