[AWP9521]

Well it's one of those how lucky do you feel?

The car doing 25-30 mph may actually be a good thing if you were just cruising at the time and not accelerating, it would be in high gear and not spinning that fast when the belt let go so you could be lucky and not hurt a thing. It's one of them things that if the cams stopped in the right spot and none of the valves were open enough to get hit by a piston as the engine rotated a turn or 2 until it stopped. The converter isn't locked up at that speed so because of the converter slippage the trans wouldn't drive the engine and keep it rotating.

It's really a tough call to determine whether a piston smacked a valve or not without either pulling the heads and doing a visual of the valves to see if they are all seated, or pulling off the rocker covers, Cam Gears and Cam then laying a straight edge across all the valve retainers front to back and see if they are all the same height. If any of the intake or exhaust valves are bent even slightly the retainers will not be even with the rest all the way down the head, the bent ones if any will be noticably lower.

I hope for the best for you should you persue trying to get it going again, good luck.