| Cylinder head gasket surface flatness |
0.025 mm over 25 x 25 area; 0.05 mm over 150 x 150 mm |
| Valve guide bore inner diameter |
0.237 -0.238 in (6.014 -6.044 mm) |
| Valve stem diameter - intake |
0.2360 -0.2353 in (5.994 -5.976 mm) |
| Valve stem diameter - exhaust |
0.2343 -0.2350 in (5.951 -5.969 mm) |
| Valve stem-to-guide clearance - intake |
0.0017 -0.0027 in (.044 -.068 mm) |
| Valve stem-to-guide clearance - exhaust |
0.0027 -0.0037 in (.069 -.093 mm) |
| Valve head diameter - intake |
1.4677 -1.4772 in (37.28 -37.52 mm) |
| Valve head diameter - exhaust |
1.2394 -1.2512 in (31.48 -31.78 mm) |
| Valve face runout |
0.002 in (.05 mm) |
| Valve face angle |
45.5 -46 deg. |
| Valve seat width - intake |
0.051 -0.063 in (1.3 -1.6 mm) |
| Valve seat width - exhaust |
0.067 -0.079 in (1.7 -2 mm) |
| Valve seat runout |
0.002 in (.04 mm) |
| Valve seat angle |
44.5 -45.5 deg. |
| Valve spring free length - Intake (approx.) |
2.205 in (56 mm) |
| Valve spring free length - Exhaust (approx.) |
2.545 in (64.65 mm) |
| Valve spring compression pressure - Intake (N @ spec. length) |
851 N @ 33.0 mm (191 lb @ 1.30 in) |
| Valve spring compression pressure - Exhaust (N @ spec. length) |
738 N @ 32.0 mm (166 lb @ 1.30 in) |
| Valve spring installed height |
43 mm |
| Valve spring installed height pressure - Intake (N @ spec. length) |
387 N @ 43.0 mm 87.0 lb @ 1.70 in) |
| Valve spring installed height pressure - Exhaust (N @ spec. length) |
427 N @ 43.0 mm 96.0 lb @ 1.70 in) |
| Valve spring installed pressure -- service limit |
10% force loss @ specified height |