Sorry for my inexperience w/ honda's guy's, but I need to know what my options are for my gf's car. She has a 95 civic dx w/ a d15b7 and an auto trans. The head is screwed. I found oil on the top of 2 of the spark plugs and had very low compression on 2 cylinders. I dont' know how many miles are on the bottom end and weither or not it has been overheated. I have the equipment/ knowledge to do a full engine replacement, but really dont have alot of time. What engines would be a direct swap over using the existing transmission? Or am I better off just crossing my fingers and do the head swap?