Valve Guide: Specifications

GENERAL SPECIFICATIONS
Valve Guide Inner Diameter (I.D) 8.063-8.094 mm (0.317-0.319 inch)
Bore Diameter (Insert Counterbore Diameter)
Intake
Minimum 39.940 mm (1.572 inch)
Maximum 39.965 mm (1.573 inch)
Exhaust
Minimum 34.940 mm (1.375 inch)
Maximum 34.965 mm (1.573 inch)