joenycfbody

Basically, same as subject. How much Hp/TQ can a stock 700R4 withstand? I've got one that I bought off of someone.. Supposedly, it has an 11-vane pump, corvette servo, and a shift improver kit.. and 31-spline input shaft.. If it has all this like it is suppose to, would it be safe to install it behind my 300hp/375TQ 400sbc? Also, using the stock torque converter. I have a 3.42 posi & a cam like 2 steps above stock.. probably 224 - 230* adv. duration.. I think it's a 270 magnum cam, but not sure..

If it doesnt have the upgrades, and is stock, would it be safe to install it if i took it easy?

Thanks for any advise & input..

MdFormula350

https://www.thirdgen.org/techbb2/sho...0r4+horsepower

MYBLUZ

I blew my 700 at least 6 to 8 times, and the car was mainly stock. Part of the problem was the %#@$ *** bandit that was building it. But yours sounds like it will hold up.

joenycfbody

thanks formula... How bout the torque converter? would there be any adverse affects of using it with a cam like the one i mentioned & 3.42 gears?

Kontrax

it will handle 300hp no problem, i wouldnt worry about that. ive seen em handle more then that. what year did it come from? 89+ is when they starting beefing them up.

joenycfbody

It came from an 85 IROC w/TPI.. As long as it was beefed up like the guy said, I think it'll last.. I just wont try to beat on it too bad.. lol My only other concern is installing it with the stock torque converter.. I would like to b/c it would help my mpg& save me some $$$$ on the swap.. Last time it was on the road, i was averaging 7mpg with a half-dead 600 carb, 3.70 rear, & th-350 tranny w/a 2500stall converter.. I changed the carb to a good performer 750, gears to 3.42, and now it's time for the tranny..