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The Mahle MS forged piston set supplies a matched eight-piston kit for small-block Ford engine builds, offering repeatable dimensions for rebuilds or custom assemblies. It is presented as a direct set for balancing and cylinder consistency. Specs indicate roughly 331–332 cid: 4.030" bore, 3.250" stroke, 5.400" rod, 0.927" wrist pin, about -6.2cc crown volume producing about 10.0:1 compression; listed per-piston mass ~438g and alloy 4032.
Mahle MS Piston Set SBF 331ci 4.030in Bore 3.25in Stroke 5.4in Rod .927 Pin -6cc 10.0 CR Set of 8
