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This Mahle MS piston set is specified for a GM LS 403ci application and includes eight pistons sized for a 4.005in bore and 4.000in stroke, with 6.125in rod length and 0.927in wrist pin. The set is sold as a matched eight-cylinder kit for engine builds calling for these exact dimensions, giving engine builders clear, component-level specification for machining and assembly.
Mahle MS Piston Set GM LS 403ci 4.005in Bore 4in Stroke 6.125in Rod .927 Pin -28cc 9.0 CR Set of 8
