| Cylinder Head Height |
| New |
5.512" (140.00 mm) |
| Minimum |
5.500" (139.70 mm) |
| Maximum Warpage |
0.0012" (0.03 mm) |
| Maximum Grind |
0.010-0.014" (0.25-0.35 mm) |
| Valve Seats |
| Intake Valve |
| Seat Angle |
45° |
| Seat Width |
0.055-0.075" (1.40-1.90 mm) |
| Maximum Seat Runout |
0.0012" (0.03 mm) |
| Seat Diameter |
1.275" (32.40 mm) |
| Exhaust Valve |
| Seat Angle |
45° |
| Seat Width |
0.055-0.075" (1.40-1.90 mm) |
| Maximum Seat Runout |
0.0012" (0.03 mm) |
| Seat Diameter |
1.157" (29.40 mm) |
| Valve Seat Inserts |
| Intake |
| Standard |
| Insert Diameter |
1.3426" (34.100 mm) |
| Bore Diameter |
1.3386" (34.000 mm) |
| Oversize 1 |
| Insert Diameter |
1.3504" (34.300 mm) |
| Bore Diameter |
1.3465" (34.200 mm) |
| Oversize 2 |
| Insert Diameter |
1.3583" (34.500 mm) |
| Bore Diameter |
1.3544" (34.400 mm) |
| Exhaust |
| Standard |
| Insert Diameter |
1.2441" (31.600 mm) |
| Bore Diameter |
1.2402" (31.500 mm) |
| Oversize 1 |
| Insert Diameter |
1.2520" (31.800 mm) |
| Bore Diameter |
1.2481" (31.700 mm) |
| Oversize 2 |
| Insert Diameter |
1.2599" (32.000 mm) |
| Bore Diameter |
1.2559" (31.900 mm) |
| Installing Temperature |
| Valve Seat Insert |
-240°F (-150°C) |
| Cylinder Head |
68°F (20°C) |
| Valve Guides |
| Valve Guide Bore Diameter |
| Valve Guide I.D. (Installed) |
| Standard |
0.2362" (6.000 mm) |
| Oversize 1 |
0.2401" (6.100 mm) |
| Oversize 2 |
0.2440" (6.200 mm) |
| Valve Guide Installed |
| Height |
0.173-0.197" (4.40-5.00 mm) |
| Valve Stem-To-Guide Oil Clearance |
|