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Mahle MS piston set for GM LS 378 ci supplies eight pistons sized to a 4.075 in bore and 3.622 in stroke for LS engine assemblies. Pistons pair with 6.125 in rods and 0.927 in wrist pins and the catalog references a 12.3:1 compression ratio. Extended specifications list a 494 g piston weight and 2618 alloy construction to handle higher compression while maintaining reliable strength under load.
Mahle MS Piston Set GM LS 378ci 4.075in Bore 3.622in Stk 6.125in Rod .927 Pin 12cc 12.3 CR Set of 8
