Reply to "4499 gets new engine"

Boss Wrench is right, good US cam grinders are reaping a benefit due to the poor quality machining of these cranks, In other words a lot of their business is fixing the cranks, but because the Chinese cannot finish their products "in this case cranks" correctly,Scat, Eagle, any volume cheap crank supplier, mass production shops are famous for good enough. you will end up having a under size journal to get the tolerances on a new crank. If you choose not to and just assemble the engine out of the box you might get lucky, In the trades luck has nothing to do with it! Check and double check and be sure.
So what are the problems?
Incorrect timing on the throws,
Journals are not dead flat across the width, leading to spun bearings or excessive clearances across the journal, in which case your hydraulic lift of your oil film keeping your parts from going metal to metal will be reduced, etc.
There is so much to this a novice does not know, it can be deceiving on a shiny new part.
Some folks on this site are tradesmen and humble as they don't push the issue to hard, and to other tradesman like myself it is obvious who they are.
Its wise to listen to these folks.

Mark