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Mahle MS piston set for 540–541 cid Big Block Chevy applications, sold as a set of eight pistons. Each piston is specified with a 4.500 in bore, 4.25 in stroke and 6.385 in rod, uses a 0.990 in wrist pin and lists a 13.0 cc crown volume producing near a 10.5–10.6:1 compression ratio depending on final assembly. The set provides the detailed sizing for compatible BBC builds.
Mahle MS Piston Set BBC 540ci 4.500in Bore 4.25in Stroke 6.385in Rod .990 Pin 13cc 10.5 CR Set of 8
