This is a Set of upgraded Rebuilt OE # 823 LS3, L92, 6.0L, 6.2L Square Port Cylinder Head Assemblies.
* Part # : 823
* Description : upgraded / custom build LS Series 6.0L / 6.2L 823 cylinder heads
* Specs : Combustion Chamber Volume: 70cc
Intake Port Volume: 257cc
Exhaust Port Volume: 87cc
Intake Valve Diameter: 2.165 inches
Exhaust Valve Diameter: 1.600 inches
* Note : HowardsCams
Stainless Steel Valves / Dual Springs - 2.165 Intake / 1.600 Exhaust
Stainless Steel Valves, .660 MAX Lift Dual Springs , Valve Seals
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