hey guys. i just toasted my trans in my 86 iroc. it never felt right from when i bought it but thats another story that just doesnt matter now anyway.i looking to find out which type and kind of torque convertor i should do. the car is 100 % street car. no racing but i figure i would like to make the tranny stronger and able to handle more horses in the future.
the car is a 305 tpi with its stock 2.73 gears. i am mainly looking to get more of her natural enginr torque to the ground. thanks in advance. chris

 

You want a locking torque converter for the 700R4 since it's capable of locking one (saves gas mileage on the highway). Most street folks run 2400 - 3000 stall speed - the higher the stall, the more rpm's required to start the car moving 'so-to-speak'. For a real technical spec, you'd want to know exact cam specs and such - then you could have one custom made for your car. But on a mostly stock car, a 2400 stall is a good choice.

FYI - no one seems to do it much anymore, but ... if you search S-10 torque converter, you can find out that years ago on TGO, a popular choice was the converter from a 4.3 (I think) S-10 pickup truck. Behind a 350, it stalls at around 2200 rpms - close to the 2400. But, buying one even brand new is much cheaper than going aftermarket for a 2400 stall converter. I went this route - think I paid $139 including shipping for a new one from GMPartsDirect.com

 

yup the s-10 converter is an option and also you can get a corvette one too...

I ran a summit brand one for months with no problems. I just came across the vigliante for a good price so I upgraded.