2002 Flywheel used on to 320i (M10) engine?

[badcabbage02]

OK, I have my worn 75 2002 engine dangling from the chains of the engine hoist. It has its cluth, pressure plate and flywheel attached.

I have a rebuilt 77 320i (2 litre) M10 engine sitting on a stand.

I purchased a new cluth plate, pressure plate, and throwout bearing.

Now I wonder if the existing flywheel on the old engine is OK to bolt on to the new 320i engine.

How can one determine if a flywheel is worn? Should I get it machined?

Ideas, please,

James

75 2002
75 Triumph TR6
91 318is

[Arizona 02]

smooth and not warped. measure the step , dont know the spec, machine shop may have a book.