Cylinder Head - Intake/Exhaust Side Views

WARNING: This page is about a different variant/trim than selected.

Fig 1: Cylinder Head - Intake/Exhaust Side Views

Courtesy of GENERAL MOTORS COMPANY

Hole Location	Thread Size	Drill	Counter Bore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Maximum)		Tap Depth (Minimum)
-	-	J 42385-						MM	(IN)	MM	(IN)
1	M6 x 1.0	201	202	N/A	203	204	205	Through		Through
2	M10 x 1.5	211	212	N/A	213	214	215	28.0	(1.10)	20.0	(0.787)
3	M8 x 1.25	206	207	N/A	208	209	210	21.0	(0.826)	16.0	(0.629)
4	M14 x 1.25	N/A	N/A	N/A	N/A	N/A	N/A	N/A		N/A
5	M12 x 1.5	N/A	N/A	N/A	N/A	N/A	N/A	N/A		N/A