It wasn't me! Honest!

I've bought it with a suspected cracked liner as it's misfiring it's nuts off. I haven't done any checks myself yet as i haven't collected it yet but it's been into a Ford dealer and they suspected the fault to be an internal fault with the engine. First thing to do is a compression test to see what the score is but if it needs rebuilding/replacing, I'm not worried as I bought it knowing that might be the case and the car was cheap enough for me to have a punt!

Cheers Matt, that'd be much appreciated!!