Piston Set (8), for 90~92 ZR-1 LT5. Eight (8) pistons are required per engine.

NOTE: This is a NEW, GM OEM part, manufactured by Mahle. Marked "B", average bare weight 482 grams. Complete with piston pin & retainers. Piston rings are NOT included. These pistons will also work in the Phase IV, 405 Hp, 93~95 models. Pistons for the Phase IV LT5 engine were slightly heavier by about 5% or 24 grams. Piston ring, groove & deck configuration are the same and rings are interchangable.