Hi

My engine is 5VZ-FE do i have Cracked Cylinder Heads?
what happened:
water pump broke and i drove with no coolant 3 miles. then i drove it down the block and engine stalled. sounds like timing belt broke.

I think cylinder heads mechanically warped and caused friction and broke timing belt.

I don't know much about engine failure. Can someone give me a guess about how this engine failed?

Will Replacing cylinder heads and timing belt fix engine?

Is cylinder block potentially damaged?

I don't think valves crashed into pistons.

Thanks for your input!
Dave