340 High Compression Pistons

Flattops can work Im just trying to obtain some that are less weight than the traditional ( TRW / SEALED POWER UNITS ) not that they are bad but the less weight the better for my situation.
With you footnotes or comments u mentioned I could get compression high enough potentially with the lighter weight units ???

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These are 4.080 bore and 10.1 with a 65 cc chamber !!!