[Bobo]

The engine I've bought as 360 is actually an 428 (bore 4.13"+0.040over) eng. casting C6ME, head C8AE-H. Now looking for a flywheel - should be externally ballanced. Does anyone have one left for me? And what is the imballance? Have the old flexplate (which I cannot use - switching to manual) and it doesn't seem like it is 28oz.
Thanx for any advice.