Topic has been moved to "Hudson" forum category.

Experience ! Do you have a shop manual?. Preferably a HUDSON Mechanical procedures book.

With that said, if you are using the old pistons you took out, you must have them very clean and free of any carbon deposits in the ring lands, and especially clean at the pin in each piston. Closely inspect the ring lands to verify they are NOT worn badly. You can do this by taking the new rings and sliding them into the groove of every ring land. If the ring lands are worn, they will allow a newly installed ring to move excessively and cause rapid ring wear, and subsequently let the engine start using oil. If you have access to carburetor cleaner, soaking the pistons for awhile will usually soften and/or dissolve the carbon. Then, with clean pistons, inspect them very close for cracks in the pistons and all of the ring lands. You also need to check the cylinder bores for excessive bore taper. Excessive bore wear will also wear the new rings out and cause the new rings to wear quickly. Picture what you are asking the rings to do?. With a heavy cylinder taper, the rings are expanding and contracting as they move up and down in the bores while running, add a little heat to that from combustion, it won't last very long. Just my opinion and experience. Short cuts or in chassis rebuilds were common, 65 plus years ago when they were just another used car!