Engine Block-Right Side View

Fig 1: Engine Block-Right Side View

Courtesy of GENERAL MOTORS CORP.

Hole	Thread Size	Insert	Drill	Counterbore Tool	Tap	Driver	Drill Depth (Maximum) mm (in)	Tap Depth (Maximum) mm (in)
1	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	26.5 (1.04)	19.0 (0.784)
2-3	M11 x 2.0	J 42385-108	J 42385-105	-	J 42385-106	J 42385-107	124.0 (4.88)	115.0 (4.52)
4	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	26.5 (1.04)	19.0 (0.784)
5	M6 x 1.0	J 42385-205	J 42385-201	J 42385-202	J 42385-203	J 42385-204	22.5 (0.885)	15.0 (0.590)
6-7	M11 x 2.0	J 42385-108	J 42385-105	-	J 42385-106	J 42385-107	124.0 (4.88)	115.0 (4.52)
8	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	26.5 (1.04)	19.0 (0.784)
9	M11 x 2.0	J 42385-108	J 42385-105	-	J 42385-106	J 42385-107	69.0 (2.72)	60.0 (2.36)
10	M11 x 2.0	J 42385-108	J 42385-105	-	J 42385-106	J 42385-107	124.0 (4.88)	115.0 (4.52)
11-14	M10 x 1.5	J 42385-215	J 42385-211	J 42385-212	J 42385-213	J 42385-214	27.0 (1.06)	21.5 (0.846)
15-18	M10 x 1.5	J 42385-215	J 42385-211	J 42385-212	J 42385-213	J 42385-214	29.0 (1.14)	23.0 (0.905)
19	M16 x 1.5	-	-	-	-	-	-	-
20	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	22.5 (0.885)	17.5 (0.688)
21	M11 x 2.0	J 42385-108	J 42385-105	-	J 42385-106	J 42385-107	124.0 (4.88)	115.0 (4.52)
22	M11 x 2.0	J 42385-108	J 42385-105	-	J 42385-106	J 42385-107	69.0 (2.72)	60.0 (2.36)
23	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	26.5 (1.04)	19.0 (0.784)
24-25	M11 x 2.0	J 42385-108	J 42385-105	-	J 42385-106	J 42385-107	124.0 (4.88)	115.0 (4.52)
26	M6 x 1.0	J 42385-205	J 42385-201	J 42385-202	J 42385-203	J 42385-204	22.5 (0.885)	15.0 (0.590)
27	M8 x 1.25	J 42385-210	J 42385-206	J 42385-207	J 42385-208	J 42385-209	26.5 (1.04)	19.0 (0.784)
Bolt holes 2, 3, 6, 7, 10, 21, 24, and 25 have a 85 mm (3.34 in) counterbore included in the 124.0 mm (4.88 in) drill depth. Bolt holes 9 and 22 have a 29 mm (1.18 in) counterbore included in the 69.0 mm (2.72 in) drill depth. Use sleeve J 42385-315 with the drill and tap.