2003-2024 Chevrolet Express Short Block Replacement Torque Specs

4.3L V6

Applies to 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, and 2024 Chevrolet Express

Labor Time:18 hours

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Torque Values (28 specifications)

Component	Nm	lb-ft	Notes
Connecting Rod Bolts	45	33	TTY - critical torque plus angle
⚠️ Connecting Rod Bolts	45	33	TTY - critical torque plus angle
Cover Bolts	16	12	—
Cover Bolts	16	12	—
Crankshaft Pulley Bolt	180	133	Often TTY - check spec, may require impact
⚠️ Crankshaft Pulley Bolt	180	133	Often TTY - check spec, may require impact
Flywheel Bolts	95	70	Often TTY, tighten in star pattern
⚠️ Flywheel Bolts	95	70	Often TTY, tighten in star pattern
⚠️ Gasket Bolts	20	15	—
Gasket Bolts	20	15	—
Main Bearing Cap Bolts	75	55	TTY - tighten in sequence plus angle
⚠️ Main Bearing Cap Bolts	75	55	TTY - tighten in sequence plus angle
Mounting Bolts	47	35	—
Mounting Bolts	27	20	—
Mounting Bolts	27	20	—
⚠️ Mounting Bolts	47	35	—
⚠️ Oil Drain Plug	35	26	Use new crush washer
Oil Drain Plug	35	26	Use new crush washer
⚠️ Oil Pan Bolts	12	9	—
Oil Pan Bolts	12	9	—
Oil Pump Bolts	12	9	—
⚠️ Oil Pump Bolts	12	9	—
Sensor Bolts	11	8	—
Sensor Bolts	11	8	—
⚠️ Timing Cover Bolts - 8mm	25	18	Tighten in sequence
Timing Cover Bolts - 8mm	25	18	Tighten in sequence
Transmission-to-Engine Bolts	55	41	—
⚠️ Transmission-to-Engine Bolts	55	41	—

Other Jobs with Torque Specs

Common Questions

What is the torque spec for short block replacement on a 2003-2024 Chevrolet Express?

The primary torque specification for short block replacement on a 2003-2024 Chevrolet Express is 45 Nm (33 lb-ft). Note: TTY - critical torque plus angle

How many torque specs are there for Chevrolet Express short block replacement?

There are 28 torque specifications for short block replacement on the 2003-2024 Chevrolet Express 4.3L V6, covering all related fasteners and components.