Lower Crankcase - Bottom View

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Lower Crankcase Thread Specification - 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	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
2	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
3	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
4	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
5	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
6	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
7	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
8	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
9	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
10	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
11	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
12	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
13	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
14	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73
15	M8 x 1.25	210	206	207	208	209	23.50	0.925	18.5	0.73