lightweight th400 vs th350
lightweight th400 vs th350 On ATI's website I noticed they sell a th400 with a lightened forward and direct drum to reduce rotating mass. Anyone know how much that really helps reduce the power loss through a th400.. would it even compare to a th350 without lightened components?
http://www.atiperformanceproducts.co...s/sldtrans.htm
http://www.atiperformanceproducts.co...s/sldtrans.htm
Not really a ton of street driving, but the track is really far so reliability is a big issue. I've been debating what to do now that my 4l60 is toast. At first I was going to go with a th350 but then after talking to ATI and finding out the cost of upgrading a th350 to last on the street and with a decent amount of power I lost a some interest in it. I am thinking of finding a running th400 trans locally, slapping a shift kit in it and seeing if I like it at all, and if not then going with the th350 with upgraded drum and sprag.
TECH Senior Member
Joined: Nov 2001
Posts: 11,603
Likes: 0
From: Chi-Town, IL
I drove my TH400 setup to the track a few times when I was N/A, I wouldn't do it now that I'm boosted and a built motor and I don't want to **** away gallons of 100octane....
one with a manual valvebody, T-brake, can be fun.......
one with a manual valvebody, T-brake, can be fun.......
The Bull
Joined: Jun 2002
Posts: 3,578
Likes: 2
From: Grand Rapids, MI
Originally Posted by Loudmouth LS1
Yes it can!!!!!!!!! 
You can get a TH400 with a light weight aluminum drum and all sorts of go fast goodies in it. I have one in mine and it works really well!
Originally Posted by DERTY
No, the correct answer is "YES IT IS".
You can get a TH400 with a light weight aluminum drum and all sorts of go fast goodies in it. I have one in mine and it works really well!
You can get a TH400 with a light weight aluminum drum and all sorts of go fast goodies in it. I have one in mine and it works really well!
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TECH Senior Member
Joined: Nov 2001
Posts: 11,603
Likes: 0
From: Chi-Town, IL
Its always a good time, just got mine rebuilt after 7000 miles, that was mostly street and a few 100+ mile trips back and forth to the track..........
Won't get drove to the track this year with the new F.I. setup........
Won't get drove to the track this year with the new F.I. setup........
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my th400 drives good on the street 4000 stall i run e85 which is hard to find around me only 2 stations carry so i have another tune on my fast xfi for 93 and im looking to do the e85 gm sensor
