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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 62 (ENGINE MECHANICAL)SPECIFICATIONSTHREAD REPAIR SPECIFICATIONSCYLINDER HEAD - TOP VIEW
2008 Pontiac Grand Prix Base
Cylinder Head - Top View
2008 Pontiac Grand Prix BaseSECTION Cylinder Head - Top View
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Cylinder Head - Top View
| Hole | Thread Size | Insert | Drill | Counterbore Tool | Tap | Driver | Drill Depth - Maximum mm (in) | Tap Depth - Maximum mm (in) |
|---|---|---|---|---|---|---|---|---|
| 1-5 | 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) |
| 6-9 | M6 x 1.0 | J 42385-205 | J 42385-201 | J 42385-202 | J 42385-203 | J 42385-204 | 20.05 (0.789) | 16.05 (0.632) |
| 10-12 | 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) |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.