CHE Bronze Alloy Intake Only Valve Seat Upgrade Edelbrock LSR Manifold These are our bigger intake

These are our bigger intake port port offering and are best suited to engines running aftermarket plastic factory style manifolds

The CID Heads BA LS7 intake manifold has an overall height of 9

Testing has shown that leaving the opening on the manifold at its cast height and matching the sides works best

Upgrade any of our cylinder heads to CHE BX Bronze Alloy Valve seat material

in a bolt on near finished state

CHE Bronze Alloy Intake Only Valve Seat Upgrade Edelbrock LSR Manifold These are our bigger intakeUpgrade any of our cylinder heads to CHE B1 Bronze Alloy Valve seat material. All standard finished cylinder head pricing comes with CHE Ductile Iron Valve Seats. Upgrading to CHE Bronze Alloys Valve Seats may be desirable in some applications. CHEs proprietary Blended Bronze Alloys have been developed specifically with valve seats in mind. They have extraordinary wear resistance and greater thermal properties than all other bronze alloys tested.