Your donations help keep this valuable resource free and growing. Thank you.
|
M-12 to GM 700R4 Swap |
Post Reply | Page <1234 8> |
Author | ||
jblue1155
AMC Fan Joined: Feb/28/2023 Location: top ks Status: Offline Points: 17 |
Post Options
Thanks(0)
|
|
AMC lives web site has an adapter to go early crank to 727. It should only require the spacer ring installed to fit a 400 turbo. If the converter snout in a 700 or other GM trans are the same your good. The converter can always be built to fit, so a M 12 snout on the GM would also solve the problem
|
||
WesternRed
AMC Addicted Joined: Aug/03/2010 Location: Australia Status: Offline Points: 5787 |
Post Options
Thanks(0)
|
|
Looking at the Novak kit, it has flex plate spacers, presumably these go between the Flex plate and the torque convertor? If this is the case then the Crank adapter ring as per the AMC Lives kit would move the whole flex plate back and hopefully eliminate the Novak flex plate spacers, might work, possibly with the GM TH400 adapter ring pressed into the crank adapter rather than the Novak supplied one. As mentioned previously, stick the BW auto and any other parts you take off in the back of the shed, just in case some purist want's to put it back to original sometime in the future. Most people will appreciate having the extra gear as it makes the car more user friendly. I have read previously that the GM 2004R is a little smaller and will fit into the tunnel easier than the 700R4 which I belive requires a little bit of hammer work for clearance.
|
||
I've finally given up drinking for good...........now I only drink for evil.
|
||
Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 6751 |
Post Options
Thanks(0)
|
|
Could do the 500A with just the AMC Lives kit also. Always easier said then done for any of these of course!
|
||
Pdok
Supporter of TheAMCForum Joined: Apr/03/2011 Location: Alabama Status: Offline Points: 1021 |
Post Options
Thanks(0)
|
|
I'm curious if you looked at Advance Adapters? They probably have the same issue with your year/390 that Novak does, and their website doesn't give much info. But, they might have something that isn't listed on the site.
|
||
76 Grem X 258/904,4.0 head/MPFI, Comp X250H cam, Hughes springs, Clifford header, serpentine swap.
|
||
WesternRed
AMC Addicted Joined: Aug/03/2010 Location: Australia Status: Offline Points: 5787 |
Post Options
Thanks(0)
|
|
A-500/A-518 are Chrysler transmissions, there is no AMC case options that would bolt up to an AMC engine, I have often wondered if the AMC TF727 or TF904 case/transmission could be modified to take the overdrive unit from the Mopar transmissions, have never seen or heard of it being done, bust seems like it would be possible. *** Correction, as per Ken's post below, there was an AMC version of the A500, handy to know.
Edited by WesternRed - Mar/15/2023 at 8:40am |
||
I've finally given up drinking for good...........now I only drink for evil.
|
||
1970390amx
AMC Addicted Joined: Jul/11/2008 Location: colorado Status: Offline Points: 3311 |
Post Options
Thanks(0)
|
|
This is the adapter to install a GM transmission to an amc, it would work on all gen two and three engines. The small round piece in the center is what presses into the stepped flange crankshaft where the torque converter hub normaly fits.This piece would need to be modified to work in a flat flange crank. The small step to the right in the picture would need to be the size of pilot hole in the crankshaft. My guess is the outside diameter near the crank should be the size of the crank hub adapter should be the size of the step on a flanged crankshaft. This would give a place for the newer flexplate to center on.
|
||
1970 390 4speed Bittersweet shadow mask AMX
1970 Amx missing most everything, or in a box |
||
1970390amx
AMC Addicted Joined: Jul/11/2008 Location: colorado Status: Offline Points: 3311 |
Post Options
Thanks(0)
|
|
The flexplate that comes with the kit is a 727 flexplate that has been modified to bolt a GM torque converter to. The four sets of holes with arrows pointing to them are factory torque flite converter holes. The three holes circled are added to allow the GM converter to be bolted to it. The spacers setting on the flexplate are needed to compensate for the thickness of the adapter.
|
||
1970 390 4speed Bittersweet shadow mask AMX
1970 Amx missing most everything, or in a box |
||
Ken_Parkman
AMC Addicted Joined: Jun/04/2009 Location: Ontario Status: Offline Points: 1815 |
Post Options
Thanks(1)
|
|
The A500 is a bolt up to the V8 as they came in Grand Cherokees with the AMC 4.0. It's quite doable and fits in a stock transmission tunnel.
You do need to crossbreed a 42RE from a GC and a 2wd hydraulic OD section from a Ram truck, but it is bolt together. You can either buy a controller or make your own to control the converter lock and the OD. Standard Mopar upgrades are doable for improved strength. In the car you need to make a new crossmember and shorten the driveshaft. No adapters needed, flexplate bellhousing, and converter (pre 96) bolt up, shift linkage and kickdown linkage fit. Needs a longer speedometer cable. There are some running changes on the A500 so it is good to use the later upgraded oil supply.
|
||
Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 6751 |
Post Options
Thanks(0)
|
|
And considering that it costs approximately $2000 to rebuild a transmission, even forgoing the core charge, these are a reasonable cost:
You would have to ask about any extra costs of the upgrades that Ken has mentioned, but if you read their web page it looks like the upgrades are included in their rebuilds.
|
||
RandyB
AMC Nut Joined: Aug/04/2020 Location: Florida Status: Offline Points: 458 |
Post Options
Thanks(0)
|
|
No, if you look at 46rh/a-518 the case is longer and wider than a 727. I swapped a 727 for a 46rh in my charger and can tell you they are not even close.
|
||
Randy B
68 Javelin SST 343 73 Charger Rallye 340 triple Blk |
||
Post Reply | Page <1234 8> |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |