Lower Crankcase - Bottom View

WARNING: This page is about a different car, the 2004 Saturn Ion Red Line. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Lower Crankcase 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)		Engineering Hole Number
J 42385-							MM	(IN)	MM	(IN)	-
1	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	415
2	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	416
3	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	417
4	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	418
5	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	419
6	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	405
7	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	406
8	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	407
9	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	408
10	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	409
11	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	410
12	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	411
13	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	412
14	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	413
15	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73	414