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The Mahle MS single piston for BBC 540ci applications (541cid noted in extended spec) is supplied as a single-engineered piston offering precise dimensional data: 4.500in bore, 4.250in stroke, 6.385in rod and 0.990in pin. Extended specs list approximately -3.4cc dome volume, 9.4:1 compression ratio, a 518g mass and 4032 alloy construction. It’s intended for use where a single replacement piston is required.
Mahle MS Piston Set BBC 540ci 4.500in Bore 4.25in Stroke 6.385in Rod 0.990 Pin -3cc 9.4 CR - Single
