Cylinder Head Material: Aluminum. Part Type: Cylinder Head [Assembled]. Cylinder Head Style: Assembled. Cylinder Head Finish: Natural. Assembly Specifications Max Lift.650" Coil Bind: 1.125" Intake Install: 135lbs @ 1.9 Exhaust Install: 135lbs @ 1.9 Closed Seat Pressure: 135lbs Open Seat Pressure: 300lbs.
