[Bob Bidonde]

Thanks Dave for your experiment. So you found a tad over 1/2 quart of residual oil in contrast to the popular belief that there is 1 quart of residual oil in the engine.

Things that may affect your experimental finding:
>When you took / take the engine apart, are there any holes in the dipper troughs in the oil pan tray?
>Leakage of oil from the valve chamber via worn oil pump bushings / shaft, and excessive main and camshaft bearing clearances.