I've got a 292 block that is already 50 over and may need to go a bit more. Whats the max you can safely bore on a 292? Also, the crank is .20 on the rods and .10 on the mains, whats the max on it? Thanks for any and all help.

 

The only way to determine that absolutely is to sonic check the bores. Many times, you can use 312 pistons. Mine is .070 over right now.