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The Mahle MS piston set for GM LS 365 ci supplies eight pistons sized to a 4.005 in bore and 3.622 in stroke for LS applications. Pistons pair with 6.125 in rods and 0.927 in pins and are listed with a 12.3:1 compression ratio in extended notes (12.0 stated elsewhere). Mahle records a piston mass around 468 g and identifies a 2618 alloy in the extended spec, offering strength for higher‑compression builds.
Mahle MS Piston Set GM LS 365ci 4.005in Bore 3.622stk 6.125in Rod .927 Pin 12cc 11.9 CR Set of 8
