<https://www.redpowermagazine.com/forums/topic/112194-fordson-f-tractor-project/#comment-1168248>
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"A bit off topic, but back in the 50's and 60's the drag racers and nascar builders would grind the inside of the block smooth and then either polish it or paint it to get the oil to run back down into the crankcase faster. No need now with the aluminum blocks, but I know a guy that runs in the lower drag racing classes and he does it still. Any trick that works. Youngest son is building a balanced and blueprinted Ford 390 for his restored 63 station wagon and is planning on smoothing the inside of the block.\n "
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