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Home >> Cadillac >> 1989 >> Seville V8-273 4.5L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> System Specifications
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System Specifications

Cylinder Head Bolts

(Figure 1) Cylinder Head Bolt Torque Sequence:






In the sequence shown in figure 1:

^ Torque bolts to 50 Nm (38 ft lbs)
^ Torque bolts to 90 Nm (68 ft lbs)
^ Tighten bolts 1, 3 and 4 to 120 Nm (90 ft lbs)

CAUTION: It is extremely important that the above procedure, sequence and torque values are maintained to ensure proper head gasket performance.