2002-2010 Lexus SC 430 Exhaust Manifold Torque Specs

4.3L V8

Applies to 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, and 2010 Lexus SC 430

Labor Time:3 hours

Torque Values (8 specifications)

Component	Nm	lb-ft	Notes
Cover Bolts	16	12	—
⚠️ Exhaust Flange Bolts	45	33	Apply anti-seize \| ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
⚠️ Exhaust Manifold Nuts	30	22	Apply anti-seize, work hot-to-cold \| ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
⚠️ Flange Bolts	47	35	Anti-seize
Hanger Bolts	20	15	—
⚠️ Heat Shield Bolts	10	7	⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL
⚠️ Mounting Bolts	47	35	—
⚠️ O2 Sensor	47	35	Anti-seize threads

The primary torque specification for exhaust manifold on a 2002-2010 Lexus SC 430 is 16 Nm (12 lb-ft).

There are 8 torque specifications for exhaust manifold on the 2002-2010 Lexus SC 430 4.3L V8, covering all related fasteners and components.