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Engine Block Front

Fig 1: Engine Block Front Thread Repair Points
GM2400949Courtesy of GENERAL MOTORS COMPANY
Engine Block Front

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 M8 x 1.25 206 207 N/A 208 209 210 28.5 1.1220 23.0 0.9055
2 M10 x 1.5 211 212 N/A 213 214 215 33.5 1.3189 27.0 1.0630
3 M8 x 1.25 206 207 N/A 208 209 210 THRU 23.0 0.9055
4 M8 x 1.25 206 207 N/A 208 209 210 THRU THRU
5 M10 x 1.5 211 212 N/A 213 214 215 28.0 1.1024 28.0 1.1024
6 M10 x 1.5 211 212 N/A 213 214 215 THRU 20.0 0.7874
7 M10 x 1.5 211 212 N/A 213 214 215 THRU 28.0 1.1024
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