Cylinder Head Overhaul Specifications

Cylinder Head Overhaul Specifications

Engine Size 6.5L (397 c.i.d.)

All specifications given in inches.

Cylinder Head Warpage Limit Note 1

Valve Guides

Stem To Guide Clearance

Intake 0.0010-0.0027
Exhaust 0.0010-0.0027
Valve Seats

Seat Angle, Degrees 46
Seat Width

Intake 0.0350-0.0600
Exhaust 0.062-0.093

Runout 0.002

Note 1
Replace head if warpage exceeds .003 inch laterally or .006 inch longitudinally. Resurfacing is not recommended.