I have a 1970 dodge challenger, original 318 with 904 trans and 7.25 inch rear end. replaced the 318 with a 360. I want to swap for a 440 attached to a 727 with 8.75 inch rear end with 3.23 posi gears. Please tell me what I need to know to do this swap.

What do I need to be concerned with when choosing a 440? I was planning getting a 4006630-440-3. any concerns there?

The 727 attached I was going to rebuild.

Looking at purchasing a fully rebuilt E body 8.75 inch rear end with disk brakes. any concerns there?

I know that I need the motor swap kit from Schumacher, shorten the drive shaft. replace the front yoke. a new tranny shift linkage, kickdown linkage. new cooling lines for tranny. and relocate radiator inlet.

What else is there? Please

 

Mainly just un bolt and bolt up the replacements

 

you don't need disc brakes on the rear

 

Also have a new driveshaft made DO not redo the old one USE large U joints.
Make sure the new rear has a large U joint flange
Make sure they used the OEM type tapered bearings NOT a roller/green bearing on the rear end rebuild WITH the disk brakes I would suspect they used roller bearings ?????? LOOK for a different rear

 

Its a prebuilt rear end with green bearings. How bout a Strange Engineering S60?

 

The roller bearings do not take side loads very well. You should be able to find a used E body 8 3/4 without any problems I'm not sure what the S60 uses

 

I have drove 50k miles on green bearings

 

Any suggestions where to find a used E body 8 3/4 rear end?

 

Check this place....

http://www.dvap.com/

 

Can I put 906 heads on a 4006630-440-3 block. There seems to be a difference in the cooling ports between early and late model heads...

I called every mopar salvage yard within a days drive and they all act like i've lost my mind looking for E body rear ends.

 

Post up some pictures.... Will have a look...

 

Roller bearings? Many many MANY cars use BALL (not roller) which the green bearings are. Roller bearings are generally used in "C clip" rears and the rollers don't actually see side loads.

Since these have been used is stuff like "big Fords" and 1/2 T F150s for years and years, I don't agree that they are weak on side loads.

 

 

 

http://www.440source.com/blockinfo.htm

 

Looks good to me.... As long as the hole in the head, gasket and Block line up... You should not run into a problem.
Might have a little more heat in the middle exhaust side of the head from the lack of the lower 2 water passage ports... Nothing to worry about at this point....
You just have the early block....