The Mahle MS piston set for GM LS 365ci engines is a complete eight-cylinder kit supplied as a set of eight pistons sized for a 4.005 in bore. Specs from the source include 3.622 in stroke, 6.098 in rod length, 0.945 in wrist pin, 429 g piston weight and a 10.5:1 compression ratio, matching the stated 365ci GM LS configuration for accurate rebuilds.
Mahle MS Piston Set GM LS 365ci 4.005in Bore 3.622in Stk 6.098in Rod .945 Pin 429g 10.5 CR Set of 8