How many miles? It's easy to hone the cylinders, put in rings and rod bearings, and a timing set, all with the block still in the vehicle.Mattb said:I am in the same boat and considering the same question. My rings are pretty much shot (blowby out the filler cap is ridiculous, and the oil gets black in about 750 miles after an oil change) and I have wicked timing chain noise (time for a replacement). A buddy of mine is of the opinion it may be both cheaper and faster to buy and install a rebuilt motor instead of replacing the timing chain and doing the machining work. My sense is he is right. Any input?