I apologize for starting another thread, but I have one more question regarding my 3.9L to 5.2L swap. With my 3.9L V6 right now, I have an AX15 transmission, and I know that with the V8, I'll need a new flywheel with the right tone ring, plus, I want to replace the clutch anyway. From what I'm finding, the V8 flywheels are slightly bigger, about 1/4" larger in diameter. Would this be an issue with the stock bellhousing and starter location? I'm thinking it would fit okay, but will the starter need modification? Maybe I would be able to find out once I pull out my V6, but I'm wondering if anyone would know, before I do that.

For reference, here's a link to a V6 flywheel:
http://atpautomotive.com/flywheel-z-324
V8 flywheel:
http://atpautomotive.com/manual-tran...flywheel-z-368

Also, any chance anyone knows the true stock flywheel size?
Rockauto is a bit confusing with this, because it seems that every flywheel manufacturer is measuring the diameter differently...

 

Did you ever figure this out? I'm searching for the same thing with inconclusive answers.