275 passes running 8.60’s in my Daytona. 440source assembly and their steel caps. When I tore it down for rebuild it was cracked up thru the mains. It never leaked a drop of water.
I've seen the same thing he has, aluminum rods with a stock stroke OEM forged steel crankshaft cracked between #1 nd #3 cylinders at the bottom of the cylinder walls into the #2 main webbing through it to the bearing surface
I had a OEM 426 M.W. block crack the same place but it broke a rod due to spinning the #1 rod bearing and the rod broke and hit the side of the block on the left front
