Not sure what cracked it, but it looks like it was run while cracked , you can see where it must have been dripping salt water on front of the complete motor, pulleys etc. have rust and back half of the motor super clean. Oil is clean, well oil is dirty but w/o any water. I guess since the liner was bronze that eliminates me trying to weld it up since I am in the salt.
I am going to buy a leak down tester but since I have to take the intake off anyhow, I might a well pull head and freshen those up and look at the walls. I might try to get a starter rigged up and see if it runs though before I yank the intake.