Useless 4 speed?

[Duster440]

will any chrysler 833 fit on an Rb engine?
i have a 4 speed that is 23 spline and i noticed that i can buy a clutch disk large enough to fit the flyweel for the 440 , so i am planning to use this on my 440 duster conversion. thanks for any info

[MopART]

The Mopar tranneys are specific - small block fit small block and big block only big block. However, I think you can take the BB bellhousing and put it on the SB tranney - almost sure of it.
What cluth and pressure plate set-up are you considering. I love my 10 1/2" 23 spline Centerforce dual friction that I put in the '71 Challenger R/T. You can still slip it out for resonable street stop and start and when you're snatching gears it grabbs like hell, even with slicks.
For set up- advice you contact me at joetonos@tecinfo.com. There are no instructions with the kit so the phone calls I made could help you out if you go with the Centerforce.

good luck,
ART

[Duster440]

so a 23 spline a-833 4speed would be fine on a 440? i just dont want to destroy my 4 speed. also i dont want to have to buy or find another 4 speed for the 440.

[sixpackguy]

The a-833 4 speed doesn't care whether it's bolted to a big block bell housing or a small
block one. There are differences in the input shaft bearing retainer sizes thru different years. You need to make sure your trans fits your bell housing. If not, you can make an adapter ring if your retainer is smaller than the bellhousing. Some other differences are tailshaft length and shifter pad location. If you're working with a street
or street/strip setup, the 23 spline should work fine for you.

[Brian_wo]

yeah what is that? a 4 speed is just that,a 4 speed,not a big block 4 speed or a small block 4 speed,the biggest question would be what car do you have and what 4 speed do you have? if you have a B body then you can't use an A body 4 speed and if you have an E body you can't use a 69 and down B body but you can use a 70 B body because they have the dual shifter mounting pads,are ya lost yet?

[Duster440]

i have a 360 4bbl 3.91 sure grip ,using the 833 4spd. its in a 71 duster. I am replacing the 360 with a 440 from a new yorker , the 440 was auto and it is a 76 or 77. i just hope it still lines up with the hole in the floor.

[MopART]

Hey Guys,

Blow me..... I was referring to the bellhousing and not the tranney itself. Sorry for the confusion.

ART

[440trk]

Hey Duster 440,
That late model 440 is a cast crank, and will not have the proper provisions for a 4 spd. There is a new style pilot bushing/bearing that can be retrofit, but you will probably still need to remove some of the 4 spd's input shaft, as the cast crank will not be drilled deep enough to accept it. Requires cutting your actual input shaft, or having the crank removed and drilled for a 4spd.
Good Luck!


------------------
Mike (440trk)

[Duster440]

darn it! , how hard is that going to be? how can i tell if my crank wont take the 4speed? i have a 3 speed with 23 spline input shaft , will that work in the 4speed? i just dont want to cut the shaft and only have it fitted to the 440. i use the 833 on my 318 and 360 as well. what is my easiest way of doing this? what type of pilot bushing do i need?, thanks.

[RoadRunner]

Try http://www.mopartsracing.com/

I just changed out my 18 spine clutch and all the goodies with it to, retainer, release, and pilot bearing. At the website you can find the telephone number. Give Lawerance a call, he is a super nice guy and can probally answer all your questions...Really good prices to!

Bill

[hemi-1]

Not that hard. First, as far as I know all 18 spline transissions are B or E body with long tailshafts, so unless you want to cut your transmission crossmember you need to use the 23 spline A body trans you already have. It is plenty strong enough for a 440, and the shifter will be in the right place (factory 383 A bodies used the same 4 speed as 340s).

Second, the pilot bushing issue would be the same for small block or big block--most automatic transmission cranks have not been machined for pilot bushings. Some have not been drilled at all, others have been rough drilled but not finished machined, and some have been are drilled and machined for the bushing. How to tell? Buy a pilot bushing and see if it will fit into the back of the crank. If it does, use it. Otherwise, you have two choices: a) machine the crank for a pilot bushing (not that hard for a good machine shop if you have the crank out of the motor) or b) buy a new Mopar needle pilot bearing p/n 53009180, which fits into the torque convertor hub flange.

As for cutting the tip of the input shaft, you may not have to, if a pilot hole has been even rough drilled. But even if you do, it won't just fit a 440, it will fit any motor so long as you use the 53009180 bearing. There's an article about all this in the June 1999 issue of Mopar Action.

On the clutch, you don't have to use an 11 inch clutch assembly; a 10 1/2 will work just fine and is probably a bit lighter. 383 A bodies were factory equipped with the 10.5's and so a 10.5 bellhousing will fit without hitting anything for sure. The 11 inchers I'm not sure about. Either way, you're probably going to have to play with the clutch linkage a bit to get everything lined up, but it shouldn't be too hard. (My 69 Cuda 383 has an offset bracket to attach the Z bar to the bellhousing.)

Finally, RoadRunner's right about Lawrence Rountree at the Atlanta Connection (mopartsracing.com). Great place to buy Mopar Performance parts.

[Duster440]

what about the 360's flywheel , will it work on the 440 ?

[L. Johnson]

Not without balancing. The 360 uses a special balance and the cast crank 440s use a different one. Most 4 speed 440s I've seen were steel crank engines.

------------------
L. Johnson

[RoadRunner]

Hey Hemi-1...I see your from Tallahassee to.
You would'nt happen to be Mike T. would you?
Email me if you would at bjavant@prodigy.net

[hemi-1]

Nope, I'm Curtis. As far as I know, there's only one other Hemi in Tallahassee and he's not a Mike either. See
http://www.electro-net.com/~rknerr/nfma/

Click on pictures, and "a pair of club member's hemis"

Duster 440, forgot to mention earlier that a cast-crank 440 is externally balanced, so whatever flywheel you used has to be balanced specifically to it. 360 is externally balanced too, but the balance is different. I assume you could have the 360 flywheel rebalanced to cast-crank 440 specs, but have never tried this so I might be wrong. This is still basically a bolt in swap so go for it.