AOD behind a big block

thanks for the link!

also some good reading here on the subject:

http://www.yellowbullet.com/forum/showthread.php?t=222256

windsor wrote:

95lightiningguy wrote:Use of an AOD requires using some sort of adapter to fit behind a 385 engine. The e40d is a bolt on. Heres a link for adapters http://transmissionadapters.com/

The general consensus is that's a bad way to adapt an AOD, for several reasons. The best way I've researched is the JW Bell (marketed by some tranny builders as their own ...Lentech for example). Here's pics of that very JW Bell on my AOD - which is not in the car yet.

Hi Im new here, Im doing this swap myself, just wondering, you had to cut off the old bellhousing to adapt this one right? what tool did you use? And whata bout the bolt holes? sorry if my questions are a bit stupid, ive never really worked with an aod before,

thanx

id like to know how it does mount(cutting old bell off and new one on?)also cuz I have a built aode/4r70w monster built trans with full manual valve body

blwn327 wrote:id like to know how it does mount(cutting old bell off and new one on?)also cuz I have a built aode/4r70w monster built trans with full manual valve body

Shave the old bellhousing off and attach the JW bellhousing on. Im not sure on the messurements however.

This is directly from JW in an email they sent me (good customer service):

Hi John,

The bellhousing does come with rough dimensions on where to cut it off. I tell people the best way to do it is to use an 1/8" drill bit and drill a series of "finder" holes from the inside of the stock bellhousing to the outside. When you drill these hole you want to use the pump surface as your guide, once the holes have been drilled use a cutting wheel and cut from hole to hole, then use a grinding wheel to smooth the surface out. You want to make sure that no part of the orginal bellhousing touches any of the OEM bellhousing, this ensures that the bellhousing is properly seated on the pump face. You will need to make sure the flexplate you have matches the bolt pattern on your AOD converter. Please let me know if you have anymore questions.

Thanks,

Eric Secaur
Account Representative
J.W. Performance Transmissions
(321) 632-6205 ext.18
www.racewithjw.com


With that, it is my understanding that you can only use the JW bell for an AOD, not a 4R or AOD-E because of slight differences. You MAY be able to use an adapter plate, but those have seemed to cause some more problems than they are worth. I'll stick with an AOD or would otherwise recommend an E4OD.

Either way, contact JW, they are friendly and helpful (and in Florida )

The JW bell mounts to the front pump bolts, about 20 ft lbs with some loctite.

Ok that was a perfect answer thanx,

The other issue,
what about a custom flexplate? Anyone know who makes those?
Ive also heard of this guy in an article that had made a custom aod converter with a c6 bolt pattern. Anyone knows who makes these?

A custom flexplate would be much better option,

any ideas there?

Actually, if you go 1-peice input shaft (except for Lentech's) you will need that C6 hybrid converter, because that's what they are based off of. This is actually the preferrable method for strength for what I understand.

I'm pretty sure you could get that style converter from several reputable converter companies. Ultimate Converter is very popular, and Dirty Dog performance is popular with the AOD guys.

You can get that flexplate from JW, I believe.

check out www.clickclickracing.com for GOOD AOD tech.

Thanx

I have a mild 408 "m" engine thats not spinning hard t all, it was dynoed at the flywheel with 417hp @5000 rpm and 470lbs@3500. Since im not drag/mud racing and its just street fun, i was planning on using this Aod advertised here
http://cgi.ebay.com/ebaymotors/AOD-Ford-Mustang-Transmission-HD-700-HP_W0QQcmdZViewItemQQhashZitem5191463380QQitemZ350329648000QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

They said to supply the converter so Thats why I wanted the custom flexplate instead.
Im guessing that this ebay aod probably woulndt stand woping hp as they state but will hold agianst my mild 400...

Ok ive been doing some reading, The integral bellhousing AOD requires a flexplate with 164 teeth (approximately 14 1/4" diameter with an 11 7/16" torque converter bolt pattern) for proper starter placement and converter compatibility. The original 351m/400 used a similar flexplate with 10.5" torque converter Bolt Pattern and 28 oz-in crankshaft imbalance. So I found this 351m/400 TCI flexplate with 164 teet, 11 7/16" torque converter bolt pattern, and 28 oz-in crankshaft imbalance :

http://www.performancetransparts.com/fordsfi291approvedflexplate28ozbalance164tooth.aspx

It seams to match the aod, or is there another reason why it wouldnt?

hollenjoe wrote:Ok ive been doing some reading, The integral bellhousing AOD requires a flexplate with 164 teeth (approximately 14 1/4" diameter with an 11 7/16" torque converter bolt pattern) for proper starter placement and converter compatibility. The original 351m/400 used a similar flexplate with 10.5" torque converter Bolt Pattern and 28 oz-in crankshaft imbalance. So I found this 351m/400 TCI flexplate with 164 teet, 11 7/16" torque converter bolt pattern, and 28 oz-in crankshaft imbalance :

http://www.performancetransparts.com/fordsfi291approvedflexplate28ozbalance164tooth.aspx

It seams to match the aod, or is there another reason why it wouldnt?

I think this is the flexplate im looking at running behind my 393C i was going to just drill new wholes in it for my converter if it doesnt fit and have it rebalanced.

If just drilling holes and rebalancing it is possible, I think its a way to go... Im gonna ask around and trying to get opinions on this

hollenjoe wrote:If just drilling holes and rebalancing it is possible, I think its a way to go... Im gonna ask around and trying to get opinions on this

I know one way to get around the whole darn problem is to internally balance the engine and just use a neutral balance flywheel and dampener. As long as all wholes are made equally it wouldnt be a problem.