Cylinder Head - End View (Rear)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Cylinder Head - End View (Rear)

Courtesy of GENERAL MOTORS CORP.

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
-								mm	(in)	mm	(in)
1	M 14 x 1.5	409	410	n/a	411	412	413	36	1.418	28	1.103
2	M 14 x 1.5	409	410	n/a	411	412	413	36	1.418	28	1.103
3	M 10 x 1.5	211	212	n/a	213	214	215	28	1.103	22	0.866
4	M 10 x 1.5	211	212	n/a	213	214	215	28	1.103	22	0.866