Aviator AWD V8-4.6L DOHC VIN H (2003)
Valve Guide: Specifications
Valve guide bore diameter ........................................................................................................................................ 7.015-7.044 mm (0.2762-0.2773 inch)
Valve stem diameter - intake (standard) .................................................................................................................... 6.975-6.995 mm (0.2754-0,2746 inch)
Valve stem diameter - exhaust (standard) ................................................................................................................. 6.949-6.970 mm 10.2744-0.2736 inch)
Valve stem-to-guide Clearance - intake ...................................................................................................................... 0.020-0.069 (0.00078-0.00-172 inch)
Valve stem-to-guide clearance - exhaust ........................................................................................................................ 0.046-0.095 (0.00 1 S-0.0037 inch)