i have a 67 vip with a 383 and auto trans. i spun a bearing so i am building a 440 and gonna o/h the trans and was wondering how to identify what type of trans it is, how do i do this?
Joined: Sat Dec 10 2005, 04:28PM
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Posts: 4954
Matt
Without even looking I can tell you it's a 727. In those days, they had a 904 and a 727. The 904 was used on the small cars, A's and some B's with either a 6 Cyl or 318. Definitely all the 6 Cyl's. I think the vans and pick-ups with the 6 had 727's in them. Never used on anything bigger than that. Even then I believe the 318's were 727's. I know they used the 727 on the 360's up to at least 72. 318's in 71 started to pop up with 904's.
Big Blocks and Big cars seemed to always get a 727. To be sure, look up the pan gaskets. The 904 pan is almost square and the 727 pan is square with a hump on the right front corner. Or just look at the pan on yours.
But save getting dirty. . .I will bet it's a 727 Torqeflite on a 383. If adding a bunch of Horse Power, add a air cooled trans cooler to it. But make sure that trans is in real good shape before you go introducing a power house. The trans cooler will make that trans last forever. <span class='smallblacktext'>[ Edited Mon Apr 03 2006, 06:02PM ]</span>
All big blocks had 727s behind them,but all 727s are not the same.66-70s had no part throttle kick down.This is the single best mod. to do while you have you,re tranny out.Take a valve body from a 71 and up 727 and transplant it in your older trans,it bolts right in.Or you can get ahold of Rick Allison, at A and A automotive and transmission.He sells this kit that you can add on to your 66-70 tranny that will give it this feature.With the kickdown feature,when you're rolling at say 25-30 mph and you put the pedal to the carpet,the trans will go directly from 3rd gear down to 1st.Without the kickdown it will only go to 2nd.My 340 will fry the tires well into 2nd gear after i performed this mod on the monaco and before it performed like a dog when i kicked er down.Glen
thanks guys i love this board, good advice and knowledge. so it is safe to use a 78 valve body? that is the oldest application that transtar has they said it'll work. i am going this week to talk to the machine shop about the motor i'll post specs as soon as i have them.
Joined: Sat Dec 10 2005, 04:28PM
Location: United States
Posts: 4954
No the 72 Polara has a 727 behind the 360 now, but the SOON TO STAY GREEN Polara (Yeep Yeep Yeep (*&(*&^(*&&*^%$*&*_)(_*&*^(*) will have a 518 pooter controlled trans in it from a 72 Dodge Pick-up.
My sources say 71-78 valve bodies are the same,actually you can take the plate and piston assembly from the newer valve body and just transfer it over to you're valve body.It would probably bring piece of mind knowing that you're valve body was working and the other might be a crap shoot.Can anyone on this site maybe post a pic of this as i dont know how to post pics.This changeover will take you less than 5 minutes.Glen
One thing to consider if you are building up the 440 would be a aftermarket valvebody. When I did my 440 swap I found a 69 Imp 727, which is built the same as Hemi autos. Then had the rebuilder swap in a Turbo Action Cheetah Pro Street Auto valve body. WOW! This thing is awesome!! Super hard shifts, With the mild 235 Dunlops on the rear it barks 2nd everytime! Takes a litle more work to bark the 275 Nittos though.
Joined: Mon Oct 31 2005, 12:48PM
Location: Bakersfield, California
Posts: 1755
71F3 wrote ... In those days, they had a 904 and a 727. The 904 was used on the small cars, A's and some B's with either a 6 Cyl or 318. Definitely all the 6 Cyl's. I think the vans and pick-ups with the 6 had 727's in them. Never used on anything bigger than that.
Stevo, you are talking specifically in the early years, right? Because the 904 was used on 360s in the 80's on many applications, including my E56 Cordoba. It was the 727 that became scarce in those years.