Representative Image Edelbrock Performer RPM Cylinder Head - 60509 Part #: 60509 Line: EDB Edelbrock Performer RPM Cylinder Head Manufacturer's Defect Warranty Material: Aluminum Quantity: 1 Seat Angle (Deg): 45 Degree Retainer Included: No Valve Cover Gasket Included: No Head Gasket Included: No Chamber Size (cc): 72cc Valve Angle (Deg): 14 Degree Intake Port Size (cc): 215cc Valve Guides Included: Yes Exhaust Valve Diameter (in): 1.400 Inch Intake Valve Diameter (in): 2.110 Inch Show More Show Less