Junk motor/ engine block

I’m looking for an engine block, it doesnt have to be any motor in particular, don’t care if it’s a 4,6,8 cyl etc. I dont care if it runs, because I’m not trying to make it run, you can take all the accessories off. If it has the crank and pistons in it, that would be better. I am doing a project to test something. I can pick it up too… hopefully.

Freebies are cool, not looking to spend a lot. Let me know what you have.

I should have one kicking around. Should also have the pistons/rods although I may not. But like I said I have the block.

I have a bare s50 (bmw m3) block

I have a 1.8T motor from an audi you can have for scrap value. Tranny will be pulled soon so all you have to do is pluck it out.

Still runs but has bad knock.,