Hey guys, I'm new to this forum and to working on Lexus period. I did an engine swap for my nephew on his IS300. I believe it's an 05. He bought a used 2jZ? with just under 30k and it was originally from Japan. After the install I found out that the harness did not work on the stock ECU nor did it work on the one that came with the motor. So I decided to swap out the harness and install the original and use the original ECU and that worked out much better. But that's not what i'm concerned with at this moment. The problem I am having is that the engine seems to be frozen stuck. I was going to start bolting the flywheel to the torque converter and I can not get the engine to turn in either direction. Is there anything that would bind up the engine cause I have a hard time believing that it's frozen due to sitting although I did not verify before installation. (knucklehead me) I have the trans in neutral just in case but since it's not mated to the flywheel I don't see how it would prevent the engine from turning. So if anyone has any ideas or has experienced this issue please throw me a bone here would ya. Thanks p.s bear in mind I do not have much technical knowledge when it comes to Lexus of any kind.