Diamond Racing's L92 forged piston sets are built for customers that want to have the ability to run an L92/LS3 cylinder head setup!  Diamond offers their stock stroke -12.3cc dished piston set in a 4.065" bore size for customers wanting to use a factory L92/LS3 bore size.  These pistons are intended for customers looking to run a supercharged or turbocharged application.  The specs for the piston sets are listed below: 4.065" Bore, 3.622" Stroke, 6.125" Rod Length, 1.115" CD (0 Deck at 9.240"), -12.3cc Dish, Standard 1.5mm/1.5mm/3.0mm Ring Pack, Premium 8620 Wrist Pins Included, Top Ring Depth .260", Valve Relief Depth .175" Intake and .105" Exhaust