We bought a 65 coupe 4 speed 289 A code knowing it had serious engine probs. We just did a careful compression test and found several very low compression measurements. Also lots of valve train noise. Has new plugs, wires, carb, dist, timing confirmed at 6 BTDC, etc. And the engine has been rebuilt before per statements from old owner and visuals. We have made the decision to pull it and replace with a rebuilt 71 302. Budget does not allow for a nice roller crate (sad). I have never pulled a motor. Do we have to pull the trans with it? If not, where does it separate? On the engine side of the bell housing or does the bell come out with it? How do we deal with the clutch? So many questions as my son and proceed into the unknown!