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This Mahle MS piston set for GM LSX 438 ci provides eight pistons fitted for a 4.130 in bore and a 4.125 in stroke, matched to 6.125 in rods and 0.927 in wrist pins. The kit lists an 11.2:1 compression ratio and extended specs indicate roughly a 427 g piston mass with 4032 alloy construction, offering a forged solution suited to oversized LSX applications requiring consistent combustion chamber volume.
Mahle MS Piston Set GM LSX 438ci 4.130in Bore 4.1in Stk 6.125in Rod .927 Pin -8cc 11.2 CR Set of 8
