I am still trying to find an engine for my 73 FJ55. I found a guy who is selling a F155, will that drop right in to my 55? If not could it be converted and for how much. Also what kind of specs are on that engine. Lastly its a solid running engine with a little oil leakage whats a fair price for it. I know thats a lot of questions. Thanks for any and all help. Richard