Engine Block - Bottom View

WARNING: This page is about a different car, the 2003 Saturn Ion 3, 2003 Saturn Ion 2, and 2003 Saturn Ion 1. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Block Thread Specifications - Bottom View

Courtesy of GENERAL MOTORS CORP.

Service Call Out	Thread Size	Insert	Drill	Counterbore Tool	Tap	Driver	Drill Depth (Maximum)		Tap Depth (Maximum)
J 42385-							MM	(IN)	MM	(IN)
1	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
2	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
3	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87
4	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
5	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
6	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87
7	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87
8	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
9	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
10	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
11	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
12	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87
13	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87
14	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
15	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
16	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87
17	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
18	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
19	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87
20	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
21	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
22	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87
23	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
24	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
25	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
26	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
27	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87
28	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
29	M10 x 1.5	514	511	N/A	512	513	60	2.362	53.5	2.11
30	M8 x 1.25	210	206	207	208	209	28	1.102	22	0.87