Valve Seat
| Seat Angle | 45 Degrees (deg) |
| Seat Width, Intake | .069-.091 Inch (in) |
| Seat Width, Exhaust | .069-.091 Inch (in) |
| Runout | 0.0003 Inch (in) |
| Seat Insert Bore Diameter, Intake | 1.723-1.724 Inch (in) |
| Seat Insert Bore Diameter, Exhaust | 1.506-1.507 Inch (in) |