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The Mahle MS forged piston set is an eight-piston kit intended for large small-block Ford stroker projects that need matched pistons and predictable combustion volume. It supports consistent engine assembly and displacement planning. Listed geometry: roughly 431 cid with 4.080" bore, 4.125" stroke, 6.700" rod, 0.990" pin and about -26cc crown volume for roughly 9.3:1 compression; per-piston mass noted ~511g, alloy 4032.
Mahle MS Piston Set SBF 431ci 4.080in Bore 4.125in Stroke 6.7in Rod .990 Pin -26cc 9.2 CR Set of 8
