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This Mahle MS forged piston set is specified for a GM LS 403ci build with a 4.005 in bore, 4.000 in stroke, 6.125 in rod and 0.927 in wrist pin; the set of eight features a -12cc dish yielding approximately 10.5:1 compression. These pistons are intended for high-performance engine builds where precise bore and compression specifications are required—verify exact dimensional match for your engine.
Mahle MS Piston Set GM LS 403ci 4.005in Bore 4in Stroke 6.125in Rod .927 Pin -12cc 10.5 CR Set of 8
