Engine Block - Left Side 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 - Left Side 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	M12 x 1.75	865	856	857	858	859	19.50	0.768	12.5	0.49
2	M6 x 1.0	205	201	202	203	204	-	-	-	-
3	M12 x 1.75	865	856	857	858	859	19.50	0.768	12.5	0.49
4	M10 x 1.5	215	211	212	213	214	23.50	0.925	18.5	0.73
5	M10 x 1.5	215	211	212	213	214	23.50	0.925	18.5	0.73
6	M6 x 1.0	205	201	202	203	204	20.50	0.807	16.0	0.63
7	M6 x 1.0	205	201	202	203	204	20.50	0.807	16.0	0.63
8	M6 x 1.0	205	201	202	203	204	20.50	0.807	16.0	0.63
9	M6 x 1.0	205	201	202	203	204	-	-	-	-
10	M12 x 1.75	865	856	857	858	859	19.50	0.768	12.5	0.49