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This Mahle MS piston set is specified for GM LS 370 ci applications and ships as a set of eight pistons sized to a 4.030 in bore with a 3.622 in stroke. Each piston pairs with a 6.125 in rod and 0.927 in pin, carrying roughly a 12.0:1 compression ratio in the catalog. The extended data records a 477 g piston mass and 2618 alloy construction to support higher‑compression LS configurations.
Mahle MS Piston Set GM LS 370ci 4.030in Bore 3.622in Stk 6.125in Rod .927 Pin 12cc 12.0 CR Set of 8
