Finished taking apart that 78' 440 short block with 25 K on it. It came from a motor home and with no ring ridges in any cylinder, so I'm pretty sure the mileage is true. The oil pan was heavily sludge-d up and the timing chain was pretty sloppy. But the piston showed no burnt oil carbon in the ring grooves, so I'm sticking with the original set of rings. The main bearings were good, but one rod bearing was showing the bronze shell through the babbit material. The other rod bearings probably could be used, but I think all new bearings would be a safe bet. The cam bearings were another matter. There was what looked like gouges in the babbit material. Those to will be replaced. I loaded the block and heads up and will drop them at the machine shop Monday.
In the mean time I'll clean up the internal parts, and inspect them, and mike the crank. Right now money is a little tight, so it maybe fall before I get a cam, lifters and timing chain. Fall is always the best time to do a tear down. I have an inner left fender to replace, due to a rust hood hinge mount. Good time to paint the engine compartment to.