Yes, I will have the head checked - the piston did slap it and crack. I am savings all the flanges, sprockets, oil pan, etc. It looks like the other 3 piston heads are okay - not sure if the rods were affected. I am going to take the oil pump apart and check it out, it was new. The windage tray has a hole ripped through it where the rod cap hit, it's trashed I guess. Just wondering if I should trash all the internals (rods, pistons, oil pump) or try to keep them. thanks