----- Original Message -----
Sent: Tuesday, March 11, 2003 11:46
AM
Subject: Re: [Chevelle-List] 200-4R
trans
Tom, I don't know where you got your information.
All the 700R4 is a 350? And all we did was put a valve body on it to make it
shift 4 times. Do you really think this? The 700R4 is a fresh designed tranny.
It's not even close. Even the case is different in length. I guess if it was
that simple we could buy a valve body and make a 4 speed from a 350.?
Believe what you want, listen to who you want. But here are the facts. The 350
was a medium duty trans built from 1969 to 1989. It was used in 6 cylinder and
small V8's. It could handle 425 pounds of torque. The 375B is a heavey duty
350. The 700R4 was put behind 455 engines among others. Doesn't sound like a
350 to me. The 700 in 1992 became the 4L60. Later the E was added to mean
electronic shifting. For those who are wondering...
The 4 is 4 speed, L is longitude, (rear wheel)
and 60 is a rating for strength. The higher the rating the stronger the
trans.
The 3L80 is a renamed 400. The 3L80HD is a
475.
The 4L80 is a 400 trans with OD, and the 4L80E is
electronic.
The 200-4R and the 700-R4 have overdrive
planetary gears and use a lock up converter. The 200R4 and the 700-4R are very
close in torque rate. The 200R4 has a deeper OD and deeper 1st, 2nd, and 3rd
gears. Anyone thinking of buying a 200R4, be sure it says METRIC on the pan.
If it doesn't, your getting a plain 200. Also, in case someone wanted to know,
a "T" in the trans designation means transaxel. (Front wheel). After working
30 years at Hydra-matic (now it's called Power Train) I have managed to save
some data both in my head and in my library. I have worked on or had dealings
with almost every trans we made. And I take exception that someone thinks all
we did was change a valve body and call it a 4 speed. Most of this info is
from my records so I know it's accurate.
Rich
----- Original Message -----
Sent: Monday, March 10, 2003 6:25
PM
Subject: Re: [Chevelle-List] 200-4R
trans
In a message dated 3/10/2003
6:48:54 PM Eastern Standard Time, [EMAIL PROTECTED] writes:
I thought
the 700-R4 was based off the TH400 and not the TH350? There are
quite a few 9 and 10 second Buick GN/T-type, etc that run modified 200-4Rs
and Art Carr has one for $1599 with a 12" converter that'll handle
700hp. For heavier cars they do recommend the 700-R4 - http://www.artcarr.com/faq.html#faq8
Dale McIntosh
TC Gold #92/ACES #1709
67SS/67 Elky
Dale’s
Place – My 67 SS and
67 El Camino
ChevelleStuff – Decoding info on 64-72 Chevelles
Team
67 – 1967
Chevelle/El Camino Specific
Midwest
Chevelles – Midwest
Chevelle Show Information
All a 700R4/4L60 is, is a TH350 with
Overdrive. They both use all the same parts except the valve
body. The thing about the 2004R is the fact that it cannot handle
massive amounts of torque, such as what a big block or a stroker will put
out. By the time you put all that $$ into a 2004R to make it able to
handle anything, you can have a nice 700R4 built and get a nice new
driveshaft made, and it still ends up being cheaper. I can have a
severe heavy duty 700R4 built for $900 including the converter by my tranny
guy. He has people run them with 10 second big blocks w/o any
problems. I say the only thing the 2004R is good for is being put
behind a stock built 305, that and a boat anchor :-).
Tom
