Engine seize?

[0kami]

It's been 2 months so far, I took my car to a mechanic, took my compression. it was 60 60 90 90.
Car had a radiator leak, overheated and died. I took out everything up to the block so far, I look at the head gasket, and I cant tell if its damaged or not, the Head looks fine. I put the car in 1st gear, roll it back and its jammed, the pistons whont move up or down. Is my engine seized? Everything we pulled out of the KA looks fine, I dont know what to do...

Anyone ever heard of this type of problem?

[aeontony]

Why don't you try turning the engine by hand using the crank bolt (put the car in neutral)? If it doesn't turn that way there's a good chance there's something really wrong..I have no experience with seized engines so I can't tell you what to look for =P Just giving ideas for other tests here..

[DuffMan]

If you want to turn the engine by pushing the car, put it 5th, not 1st. 1st is going to be hardest to move. Or use a breaker bar on the crank pulley.

[sr20det240pa]

maybe a spun rod bearing?