225 with the head left off for a year... can it be saved?!

Hi folks!
Like I wrote in the subject.. buddy had a 225 and took the head off for his 72 2 door dart and left the bottom end in his 74 dart custom... my question is with light cylinder rust and the engine turning over can it be resurrected or do I just pull it out? He said he wants to go as cheap as possible but... any suggestions or info?! Thanks!