Engine Block-Bottom View

WARNING: This page is about a different car, the 2003 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Block-Bottom View

Courtesy of GENERAL MOTORS CORP.

Hole	Thread Size	Insert	Drill	Counterbore Tool	Tap	Driver	Drill Depth (Maximum) mm (in)	Tap Depth (Maximum) mm (in)
1	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	31.0 (1.22)	25.5 (1.0)
2	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	53.5 (2.10)	44.0 (1.73)
3	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	22.5 (0.885)	17.5 (0.688)
4	M28 x 1.25	-	-	-	-	-	-	-
5	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	53.5 (2.10)	44.0 (1.73)
6	N/A	-	-	-	-	-	-	-
7	M16 x 1.5	-	-	-	-	-	-	-
8	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	22.5 (0.885)	17.5 (0.688)
9	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	31.0 (1.22)	25.5 (1.0)
10-12	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	53.5 (2.10)	44.0 (1.73)
13	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	31.0 (1.22)	25.5 (1.0)
14-15	M10 x 1.5	J 42385-215	J 42385-101	-	J 42385-213	J 42385-214	42.5 (1.67)	37.0 (1.45)
16	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	22.5 (0.885)	17.5 (0.688)
17	M16 x 1.5	-	-	-	-	-	-	-
18	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	31.0 (1.22)	25.5 (1.0)
19	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	53.5 (2.10)	44.0 (1.73)
20	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	22.5 (0.885)	17.5 (0.688)
21	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	31.0 (1.22)	25.5 (1.0)
22	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	53.5 (2.10)	44.0 (1.73)
23-24	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	22.5 (0.885)	17.5 (0.688)
25	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	31.0 (1.22)	25.5 (1.0)
26	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	53.5 (2.10)	44.0 (1.73)
27	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	22.5 (0.885)	17.5 (0.688)
28	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	31.0 (1.22)	25.5 (1.0)
29-30	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	53.5 (2.10)	44.0 (1.73)
31	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	31.0 (1.22)	25.5 (1.0)
32-33	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	22.5 (0.885)	17.5 (0.688)
34	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	31.0 (1.22)	25.5 (1.0)
35	M10 x 2.0	J 42385-104	J 42385-101	-	J 42385-102	J 42385-103	53.5 (2.10)	44.0 (1.73)
36	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	22.5 (0.885)	17.5 (0.688)
Bolt holes 2, 10, 11, 12, 19, 22, 26, 29, 30, and 35 have a 20.5 mm (0.807 in) counterbore included in the 53.5 mm (2.10 in) drill depth. Bolt holes 1, 5, 9, 13, 18, 21, 25, 28, 31, and 34 have a 1.5 mm (0.059 in) counterbore included in the 31.0 mm (1.22 in) drill depth. Use sleeve J 42385-316 with the drill and tap. Bolt holes 14 and 15 have a 11.5 mm (0.452 in) counterbore included in the 42.5 mm (1.67 in) drill depth. Use sleeve J 42385-311 with the drill and tap.