Engine Block - Top View

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Block - Top View

Courtesy of GENERAL MOTORS CORP.

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 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
2	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
3	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
4	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
5	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
6	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
7	M 6 x 1	201	202	n/a	203	204	205	22	0.866	18	0.709
8	M 6 x 1	201	202	n/a	203	204	205	30	1.182	26	1.024
9	M 6 x 1	201	202	n/a	203	204	205	22	0.866	18	0.709
10	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
11	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
12	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
13	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
14	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
15	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
16	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009
17	M 11 x 2	402	n/a	n/a	403	404	108	59	2.324	51	2.009