Cylinder Head - Top View

2004 Oldsmobile Bravada AWDSECTION Cylinder Head - Top View
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Isuzu Ascender, 2005 GMC Envoy XUV, 2005 GMC Envoy XL, 2005 GMC Envoy, and 2005 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Cylinder Head Thread Repair - Top View
GM698386Courtesy of GENERAL MOTORS CORP.
Cylinder Head - Top View

Service Hole Location Thread Size Drill Counterbore Tool Stop Collar Tap Driver Insert Drill Depth (Max) Tap Depth (Min)
  mm (in) mm (in)
1 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
2 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
3 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
4 M 6 x 1 405 n/a 407 203 204 205 THRU THRU
5 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
6 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
7 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
8 M 6 x 1 405 n/a 407 203 204 205 THRU THRU
9 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
10 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
11 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
12 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
13 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
14 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
15 M 6 x 1 405 n/a 407 203 204 205 THRU THRU
16 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
17 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
18 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
19 M 6 x 1 405 n/a 407 203 204 205 THRU THRU
20 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
21 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
22 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
23 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
24 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
25 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
26 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
27 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
28 M 6 x 1 405 n/a 406 203 204 205 28 1.103 23 0.906
29 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
30 M 6 x 1 201 202 n/a 203 204 205 23 0.906 19 0.748
31 M 6 x 1 405 n/a 406 203 204 205 28 1.103 23 0.906
32 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
33 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
34 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
35 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
36 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
37 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
38 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
39 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
40 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
41 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
42 M 6 x 1 201 202 n/a 203 204 205 23 0.906 19 0.748
43 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
44 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
45 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
46 M 6 x 1 201 202 n/a 203 204 205 23 0.906 19 0.748
47 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
48 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
49 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
50 M 6 x 1 201 202 n/a 203 204 205 23 0.906 19 0.748
51 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
52 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
53 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
54 M 6 x 1 201 202 n/a 203 204 205 23 0.906 19 0.748
55 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
56 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
57 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
58 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
59 M 6 x 1 405 n/a 406 203 204 205 28 1.103 24 0.945
60 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
61 M 6 x 1 201 202 n/a 203 204 205 23 0.906 19 0.748
62 M 6 x 1 201 202 n/a 203 204 205 22 0.866 18 0.709
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.