It seems to be seized. If the block isnt cracked. I have been asking others question but no help thats ok. I am new to boats. But I am mechanically incline I have been an aircraft mech for 12 years and I also when to school to work on car but I have to say in look like it can become very complicated when it comes to any thing with the stern drive, not to worried about the engine part just need to know where to get part for it. It is a Gm block thank for any help.