My current block is fine, but I would like to buy an extra block & crank to build. The thing is I don't know what to look out for. Cyl walls will be pulled and sleeved anyway, but I need to know what to look out for when it comes to the crank. Obviously, spun rod and crank bearings is a no no. I would like to know by way of scoring what may have happened to the crank. For example, a scuffed #4 could have been caused by a spun bearing.

Posted in the FI forum since this an FI motor build

 

I have one I was going to let you borrow, but has a spun rod bearing! You're so picky! lol jk