727 behind 5.7

Putting a 727 behind a 5.7L Hemi is a slam dunk.

There is an offset difference though, you'll need a spacer and a different flex plate.

XV motorsports and a number of other suppliers have the appropriate flexplate and shim.

http://www.xvmotorsports.com/products/detail/index.cfm?nPID=207&cid=18&cdesc=Driveline

Regards,

Joe Dokes