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Mahle MS forged piston set for 533–557ci big-block applications; set of eight. Specified with a 4.44in bore, 4.30in stroke, 6.8in rod, 0.990in pin and -38cc dish to produce roughly a 9.9:1 compression ratio, and documented 4032 in the spec line. These pistons provide precise, matched dimensions for heavy-duty engine assemblies where exact displacement and compression are required.
Mahle MS Piston Set BBF 557ci 4.44in Bore 4.5in Stroke 6.7in Rod 0.990 Pin -38cc 9.9 CR Set of 8
