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.
Tools Required
2007 Cadillac XLR VSECTION Tools Required
J 42385-2030 M11 x 2. See Special Tools .0 Cylinder Head Bolt - Northstar/Premium V8 Thread Insert Kit
The cylinder head bolt hole thread repair kit J 42385-2030 components consist of the following:
- Drill (1) J 42385-2031
- Tap (2) J 42385-2032
- Installation driver (3) J 42385-2033
- Stop collar (4) for inboard holes J 42385-2034
- Alignment pin (5) J 42385-303
- Bushing (6) J 42385-302
- Bolts (7) J 42385-2035 and J 42385-2036
- Fixture plate (8) J 42385-301
NOTE:
Ensure the cylinder head bolts, tools and inserts that are being used are the proper pitch or engine damage will occur. The thread pitch on the M11 cylinder head bolts and the engine block cylinder head bolt holes have been revised. In order to install the proper pitch insert it is important to identify which thread pitch is being used. Cylinder head bolts with a pitch of 1.5 mm have a thread length of about 48 mm (1.890 in) long. Cylinder head bolts with a pitch of 2.0 mm have a thread length of about 67 mm (2.638 in) long.
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.