JimmyRich
Member
Hello from Texas! My question is What all specifically does it take and estimated cost of going with 4 spd auto trans upgrade in my 66 Sport Fury with 383 -727 now. Thank you
Do you have a link to the Ultrabell housing?I did a 46rh in my 71. Cost wasn't terrible of you ask me. The hardest part for mine was retaining the factory column shifter. There's no provision on the ultrabell for factory linkage .
If you have to send everything out obviously Cost would be much more. Also if you have to have the trans built. It gets expensive quick.
Ultrabell housing 450$(ish)
Tunnel mods 0$
Shorten driveshaft 200$ (ish)
Fab x member maybe 100$ in steel and parts /a few hours of fab/welding
Shifter linkage 100$ ( ish )
Cost of trans ( I found mine for 500$)
Figure out a way to control OD/LU 100$ (ish)
Running 4:11 gears cruising at 70 and being able to hear yourself is worth the time /work and headache IMO.
Do you have a link to the Ultrabell housing
Prices went up.
Also , 10 or 10.5" convertor is largest that'll fit. So have to figure that in too. But no matter what you have to get convertor.
.
Also trans cooler lines are larger on 46rh. I went with A/N & an external cooler. Someone could use adapters to save a little
JW Performance 92457: Ultra-Bell Bellhousing Big Block Chrysler to TF-727 - JEGS
What years of 727 transmission does this fit?Prices went up.
Also , 10 or 10.5" convertor is largest that'll fit. So have to figure that in too. But no matter what you have to get convertor.
.
Also trans cooler lines are larger on 46rh. I went with A/N & an external cooler. Someone could use adapters to save a little
JW Performance 92457: Ultra-Bell Bellhousing Big Block Chrysler to TF-727 - JEGS
Thanks. I guess I'd need to buy longer grade 8 front pump bolts.Fits all 727 or 518 transmissions. IT IS NOT JUST A BOLT ON! If you look at the casting line on the 727 in the photograph ( above the 433 - 8) you can see the general area where the housing must be cut to allow the Ultra-Bell to mate to the case it then can be bolted on using the front pump bolts. Check out FABO/FBBO websites there are some pictorials over there IIRC.
It's for 518's primarily but I guess it could be used for a small block 727 to BB 727 but why? Internals are pretty much the same and could be swapped if you goal is to use a known good transmission, there were 10's of thousand 727's in the BB bolt pattern made and finding a case is easy. Other than the cable shifted version all 727 are primarily the same unless you consider deeper drums to house more clutches. However today there are some thinner clutches and steels that allow for more clutches in a drum. Yes there are a few outliers but they are not the norm.What years of 727 transmission does this fit?
Or is it mislabeled and really it only fits later transmission models?
Example
We're not bolting it onto my 1971 727
View attachment 649607
JEGS ad says 727, not 518. JW Performance 92457: Ultra-Bell Bellhousing Big Block Chrysler to TF-727 - JEGSIt's for 518's primarily but I guess it could be used for a small block 727 to BB 727 but why? Internals are pretty much the same and could be swapped if you goal is to use a known good transmission, there were 10's of thousand 727's in the BB bolt pattern made and finding a case is easy. Other than the cable shifted version all 727 are primarily the same unless you consider deeper drums to house more clutches. However today there are some thinner clutches and steels that allow for more clutches in a drum. Yes there are a few outliers but they are not the norm.