th350 & th400??
th350 & th400?? 
TECH Enthusiast
Joined: Jul 2006
Posts: 638
Likes: 0
From: San Diego
TH350 takes about 50 h.p. to run, TH400 takes about 75 h.p.. THat is a major consideration on less than super high output engines. A properly built TH350 will handle up to about 500 h.p., or more if you spend a ton of money on it. A TH400...well, the sky's the limit.
TH350 will handle quite a bit more than 500rwhp, but whatever. I am running a Rossler TH350 RMVB w/ brake, 4000 stall and launching on 200shots (dyno'd over 600rwhp) no problem. And yes, a TH400 when setup will out-handle a 350. I got the 350 used, and it was very affordable for what I got I couldn't think twice about it.
350 is lighter (unless you spend a fair amount on lightened internals for the 400) and smaller. As long as I dont exceed the power limit, which I would have to get back with Carl to see what the limit of this trans is, I'll stay 350.
350 is lighter (unless you spend a fair amount on lightened internals for the 400) and smaller. As long as I dont exceed the power limit, which I would have to get back with Carl to see what the limit of this trans is, I'll stay 350.
The only reason I chose a TH400 over the 350 was strength.
I was getting tired of my car being down for 6 months at a time while I saved up for yet another tranny rebuild.
Now I can break and replace other parts of the car for awhile.
I was getting tired of my car being down for 6 months at a time while I saved up for yet another tranny rebuild.
Now I can break and replace other parts of the car for awhile.
theres a guy on ebay (G man transmissions) selling 700r4's that he claims are good to 550hp for under $1100.
anybody have experience with this company or these transmissions in 4th gens?
anybody have experience with this company or these transmissions in 4th gens?
