Jeep Strokers

Has anyone swapped a AMC pattern 727 to a 4.0. If so what flex plate did you use?
I am looking at using a one from a 91-95 YJ auto, then drilling the housing for the cps. This is going to a 94 YJ, trying to use YJ starter and keep from using the CPS relocation bracket.
John

That was supposed to be a 727 swap heading
John

asked on another forum, should be fine, all they said was mate the flexplate to the starter. different teeth from 258 to 242 starters. but you knew that already

Doing the same swap in my TJ. Used a notched balancer/sensor kit from Advance Adapters so i wouldnt have to play games in the bellhousing with a drill.

I'm performing this swap. I just discovered today that the bolt pattern on the flexplate is different then the bolt pattern on the 727 TC.

Is their a 4.0 flexplate that can be used to work with the 727 and be neutral balanced?

Thanks

i would think use the one from the 727, and move the cps to the balancer for the whatever dollars for that thing youll have to use a different starter too i think, and perhaps a solenoid, depending.

I don't have a spare flexplate. The one I have is balanced to my 343.
I was hoping to keep this swap simple and find a certain year 4.0 flexplate that will work with my 727 and be able to use the stock CPS.

Thanks

I droped a 94 4.0 into a 83 cj7 with the 727. I just used the 4.0 flexplate and it bolted right to the converter with no problems. I cut a slot in the bellhousing and made my own cps braket. just adjusted it till it ran good. Hope this helps.

The flexplate needed to bolt up to a 727 is from 1991-1996. It was used on the 42RE Transmission.
Part #53006328.

Having the new flexplate match balanced to the original flexplate. I don't wanna take any chances since im not 100% sure.

Back to modifying the bellhousing for the CPS!

Why would you have it match balanced to the old flex plate? Why not just balance the flex plate on its own w/o matching it? The engine is internally balanced so you want the external components neutral balanced as much as possible.

i didn't know. I'm new to the 4.0. I can't remember the exact # but it wasn't out by much.