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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, RWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> ENGINE MECHANICAL - 4.8L, 5.3L, AND 6.0L (1 Of 4) >> Specifications >> Thread Repair Specifications >> Cylinder Head - Intake Manifold Deck View

Cylinder Head - Intake Manifold Deck View

Fig 1: Cylinder Head Bolt Holes - Intake Manifold Deck View
GM64557Courtesy of GENERAL MOTORS CORP.
Cylinder Head - Intake Manifold Deck View

Hole Thread Size Insert Drill Counterbore Tool Tap Driver Drill Depth - Maximum mm (in) Tap Depth - Maximum mm (in)
1-2 M6 x 1.0 J 42385-205 J 42385-201 J 42385-202 J 42385-203 J 42385-204 Thru Thru
3-4 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 (0.688)
5-7 M6 x 1.0 J 42385-205 J 42385-201 J 42385-202 J 42385-203 J 42385-204 Thru Thru