I think if you would of hydrolocked it, you would see some
bent rods more so.
Ive seen cranks just break on motors, its happens more then
I expected to see. Seeing as they are just cast and not steel.
How many miles where on your motor when it happened ?
I had a crank split in two on a 70 Cougar I had in high school
just pulling out of my driveway. I use to street race the car but
when it broken I was barely doing 20 mph.
Personally you could maybe rebuild or fix that motor, but has
anyone priced a new shortblock from the dealer at any sort of
wholesale level yet ?