engine

Head Gaskets - Both Torque Specs

for 2006-2020 Lexus GS 350 3.5L V6 · RWD

Units

7 fasteners

Seq

Component

Torque

Angle

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Camshaft Cap Bolts

Critical

Torque sequence

14 lb-ft · 19 Nm

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Cylinder Head Bolts

Critical

Multi-step + angle

75 lb-ft · 101 Nm

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Cylinder Head Bolts (12-Point)

Critical

Step 1: 27 lb-ft (36 Nm). Step 2: +90 degrees. Step 3: +45 degrees (Total 135).

27 lb-ft · 36 Nm

135°

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Cylinder Head Bolts (Recessed 6-Point)

Critical

Small bolts in recessed pockets: 22 lb-ft (30 Nm).

22 lb-ft · 30 Nm

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Exhaust Manifold Nuts

Critical

29 lb-ft · 39 Nm

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Intake Manifold Bolts

Critical

21 lb-ft · 28 Nm

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Valve Cover Bolts

Critical

12 lb-ft · 16 Nm

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