Edelbrock E-STREET Cylinder Head [PORT VOLUME 260cc | CHAMBER 96cc | SPARK PLUGS Standard | VALVE SIZE IN. 2.165" EX. 1.590" | VALVE SEAT Duct Iron | VALVE TRAIN Complete] (GM 6.2L LS3)

E-Street Cylinder Heads are premium-quality, bolt-on-ready cylinder heads manufactured with premium-aluminum alloy and machined to the industry's tightest tolerances for any high-performance or stock GM LS3 engine build. They are the same as our E-Street 77620 cylinder heads but with Inconel exhaust valves instead of the standard stainless steel to handle elevated exhaust temperatures of boost or nitrous injection. They are also ideal for marine applications using water-cooled exhaust systems. All stock components will fit without issue as they are engineered with the same architecture as the factory heads.

• Manganese bronze valve guides for long wear and precision tolerances on valve seat concentricity
• Assembled with quality COMP CAMS valve components to ensure maximum valve seal
• BEEHIVE valve springs, Chromoly steel retainers, stainless-steel intake valves

NOTE: For use on racing applications or pre-pollution controlled vehicles only.