max line bore?

How much have people been hackin off 440 cranks to go in 400s? A lot. Not as much as .310, but a lot.

People only do that to the 400s when they want to go fast.
If God allows it.
I'm going to have a 360 crank cut down and put in a 318 with a 4-inch bore.
You ask why? Why would you put a 360 crank and pistons in a 318?
Because I want the markings for the 318 on the side of the block. But I want it to run better than a stock 318.