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The Mahle MS piston set for Chevy SB 405ci is dimensioned with a 4.145in bore, 3.500in stroke and a 6.125in rod, featuring a 0.927in pin and a 9.0cc combustion chamber to produce approximately a 13.0–13.9:1 compression ratio depending on final assembly. This eight‑piston set follows the listed specifications for the 405ci small‑block Chevy configuration and is intended for engine builds matching those dimensions.
Mahle MS Piston Set Chevy SB 405ci 4.145in Bore 3.5/3.75 Stroke 6.125/6 Rod .927 Pin 9cc 13.0/13.9CR
