Ford 1961 Comet Service Specifications Handbook page 162

ENGINE, COOLING AND EXHAUST
CYLINDER HEAD
Gasket Surface Flatness . . . . . . . . .. 0.003 in any 6 inches
or 0 .006 Overall
Gasket Surface Finish (R.M.S.)-
Maximum ... .. . . ......... . ............... 90-150
Valve Guide Bore Diameter-Standard:
Intake:
Red . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0 .3725-0.3730
Green ............ .. ............ 0.3730-0.3735
Exhaust:
Red . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0 .3725-0.3730
Green .................. . ... . ... 0.3730-0.3735
Valve Seat Width:
Intake. . . . . . . . . . . . . . . . . . . . . . . . • . . . .. 0.070-0.090
Exhaust. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.070-0.090
Valve Seat Angle (Degrees):
Intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 45
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 45
Valve Seat Runout T.I.R.-Maximum .... . ......... 0 .002
Valve Seat Runout T.I.R.- Wear limit . . . . . . . . . . . 0 .0025
EXHAUST VALVE
Stem to Guide Clearance . . . . . . . . . . . . . . . . 0 .002-0.003
Stem to Guide Clearance- Wear limits . . ....... 0 .0055
Stem Diameter-Standard (Color Coded):
Red . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.3701-0.3705
Green. . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.3705-0.3709
0.003 Oversize . . . . . . . . . . . . . . . . . . .. 0.3731-0.3739
0.015 Oversize. . . . . . . . . . . . . . . . . . .. 0 .3851-0.3859
0 .030 Oversize ....... . .... . ... .. . ' 004001 -0.4009
Head Diameter . . . . . . . . . . . . . . . . . . . . . . .. 1.645- 1 .660
Seat Angle- Prior to l apping-In (Degrees) . . . . . . . . .. 44
L- 17