ICE Racing Engines - LS3 6-Bolt Cylinder Heads - Pair

Can be used on stock block 4-Bolt or aftermarket block 6-Bolt Designs! Stage 1: .750" Thick Deck CNC'd Intake/Exhaust Runners Stainless 2.165" Intake Valves Stainless 1.59" Exhaust Valves BTR .685 or PAC Valve Springs Blueprinted Assembled Stage 2: .750" Thick Deck CNC'd Intake/Exhaust Runners Stainless 2.165" Intake Valves Stainless 1.59" Exhaust Valves CNC'd Combustion Chambers/Softening BTR .685 or PAC Valve Springs Blueprinted Assembled  Stage 3: Call for pricing .750" Thick Deck CNC'd Intake/Exhaust Runners Titanium Intake Valves/Multiple size options Inconel Exhaust Valves/Multiple size options CNC'd Combustion Chambers/Softening BTR .685 or PAC Valve Springs Blueprinted Assembled Cylinder Head Castings in Stock All Cylinder Heads are CNC'd/Assembled and ready to ship in 8-12 Days