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 MANUALSOLDSMOBILE1968CUTLASS BASE, 6.6L ENG, ENG CD QL, AUTOMATIC TRANS, TRANS MFR CD THM350REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICALOLDSMOBILE V8 ENGINESCYLINDER HEAD INSTALLATION

1968 Oldsmobile Cutlass Base, 6.6L Eng, Eng CD QL, Automatic Trans, Trans Mfr CD THM350

Cylinder Head Installation

1968 Oldsmobile Cutlass Base, 6.6L Eng, Eng CD QL, Automatic Trans, Trans Mfr CD THM350SECTION Cylinder Head Installation

Coat both sides of head gasket with suitable sealer (No. 1050026). Tighten cylinder head bolts, using sequence shown in illustration, first to 60 ft. lbs. then to 80-85 ft. lbs.

Fig 1: Cylinder Head Tightening Sequence

Courtesy of GENERAL MOTORS COMPANY

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.