1990-2000 Lexus LS 400 Head Gaskets - Both Torque Specs

4.0L V8

Applies to 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, and 2000 Lexus LS 400

Labor Time:18 hours

Torque Values (13 specifications)

Component	Nm	lb-ft	Notes
⚠️ Camshaft Cap Bolts	14	10	Tighten in sequence from center outward, multiple passes
⚠️ Camshaft Sprocket Bolt	80	59	Hold cam with wrench on hex
⚠️ Crankshaft Pulley Bolt	180	133	Often TTY - check spec, may require impact
⚠️ Cylinder Head Bolts	101	75	Multi-step + angle
⚠️ Exhaust Manifold Nuts	39	29	—
⚠️ Intake Manifold Bolts	28	21	—
⚠️ Oil Drain Plug	35	26	Use new crush washer
⚠️ Rocker Arm Bolts	30	22	Tighten with cam lobe pointing away
Sensor Mounting Bolts	10	7	—
⚠️ Timing Chain Tensioner Bolt	25	18	Install with pin/clip to compress
⚠️ Timing Cover Bolts - 8mm	25	18	Tighten in sequence
VVT Solenoid Bolt	10	7	—
Valve Cover Bolts	10	7	Tighten in sequence

Other Jobs with Torque Specs

Common Questions

What is the torque spec for head gaskets - both on a 1990-2000 Lexus LS 400?

The primary torque specification for head gaskets - both on a 1990-2000 Lexus LS 400 is 14 Nm (10 lb-ft). Note: Tighten in sequence from center outward, multiple passes

How many torque specs are there for Lexus LS 400 head gaskets - both?

There are 13 torque specifications for head gaskets - both on the 1990-2000 Lexus LS 400 4.0L V8, covering all related fasteners and components.