Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1063 (ENGINE MECHANICAL - 6.6L (LB7) (INTRODUCTION))SPECIFICATIONSTHREAD REPAIR SPECIFICATIONSCYLINDER HEAD - INTAKE PORT VIEW

2004 Oldsmobile Bravada AWD

Cylinder Head - Intake Port View

2004 Oldsmobile Bravada AWDSECTION Cylinder Head - Intake Port View

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Cylinder Head Intake Port

Courtesy of GENERAL MOTORS CORP.

Cylinder Head - Intake Port View

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
mm	(in)	mm	(in)	-	-	-	-	-	-	-	-
1	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
2	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
3	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
4	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
5	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
6	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
7	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
8	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
9	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
10	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
11	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
12	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
13	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669
14	M 8 x 1.25	206	207	N/A	208	209	210	21	0.83	17	0.669

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.