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The Mahle MS forged piston set for SBM 408ci applications is a matched eight‑piston kit sized to a 4.030in bore with a 4.000in stroke. Pistons use a 6.123in rod and a 0.984in wrist pin and carry a -16cc crown that produces an approximate 10.3:1 compression ratio. Each piston weighs about 480 g and is produced in 4032 alloy for consistent rebuilds.
Mahle MS Piston Set SBM 408ci 4.03in Bore 4.00in Stroke 6.123in Rod .984 Pin -16cc 10.3 CR Set of 8
