A friend’s sister just gave me her running 79 320i and I want to know what I could use off it. I plan on using the engine, the 4sp (I have an auto), the radiator, the rear brakes, the diff (if its a LSD), and the alternator. Is there anything else that can swap to the 2002? On another note, the engine has a significant oil leak around the exhaust manifold, what is on that side of the engine that would cause such a leak?