Engine Block - Rear View

Courtesy of GENERAL MOTORS COMPANY

Service Call Out	Thread Size	Insert	Drill	Counterbore Tool	Tap	Driver	Drill Depth (Maximum)		Tap Depth (Maximum)
EN 42385-400							MM	(IN)	MM	(IN)
1	M10 x 1.5	904	211	212	213	903	36.0	1.417	36.0	1.417
2	M10 x 1.5	215	211	212	213	214	25.0	0.984	25.0	0.984
3	Not Serviced