where to purchase template to drill flywheel

Thank you inertia and thank you Dan...

It certainly would be an attractive option to just drop a flywheel or two around to you and have it drilled, Dan. However, from Australia this would incur huge shipping costs and would therefore be out of the question.

The other factor is that I still have two other 360 engines and I don't know what the future holds for them, it's possible I'd need to repeat the exercise.

And finally, the big question in my mind with this is the drill tip angle. The question was raised on another forum as to whether it's a 118° or 135° drill to be used. My personal leaning is that it would be 118° as the 135° drills weren't (according to what I've read) popularised until some years after Chrysler devised this method of balancing.