Chevy LS1 Head Bolt Torque Sequence and Stages
Chevy LS1 Head Bolt Torque Sequence and Stages with application boundaries, staged installation guidance.
For the covered 2002 Camaro LS1, all M11 bolts receive 22 lb-ft and 90°. On the final pass, the standard M11 positions receive another 90°, while the medium front/rear M11 bolts receive 50°. The inner M8 bolts receive 22 lb-ft.
For the covered 2002 Camaro LS1, all M11 bolts receive 22 lb-ft and 90°. On the final pass, the standard M11 positions receive another 90°, while the medium front/rear M11 bolts receive 50°. The inner M8 bolts receive 22 lb-ft.
The chart applies to the 2002 Camaro LS1 factory-bolt design. Other LS years, post-2004 short-style bolt revisions, truck blocks and aftermarket studs require their matching procedure.
Keep medium M11 bolts identified before assembly and use an angle meter. Do not apply the 90° final turn to positions assigned 50°.
Interactive 2002 Camaro LS1 5.7L V8 head service map
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Use the numbered map as an orientation aid only. The application-specific service diagram controls the actual bolt positions and stages.
Chevy Ls1 Head Bolt Torque Sequence
| APPLICATION / ITEM | SPECIFICATION | NOTES |
|---|---|---|
| All M11 initial | 22 lb-ft | 30 N·m; exact sequence |
| All M11 second pass | 90° | Angle meter required |
| Standard M11 final | 90° | Excludes medium front/rear bolts |
| Medium M11 final | 50° | Front and rear of each head |
| M8 inner bolts | 22 lb-ft | 30 N·m; separate group |
Keep medium M11 bolts identified before assembly and use an angle meter. Do not apply the 90° final turn to positions assigned 50°.
How to use this specification correctly
- 01
Identify the engine code, model year, casting, gasket and exact fastener kit before disassembly.
- 02
Clean and inspect threads, bolt holes and mating faces using the component manufacturer's limits.
- 03
Follow the exact staged pattern with the specified lubricant or sealant; record torque and angle completion.
The LS1 medium-bolt exception
All M11 bolts first receive 22 lb-ft and then 90°. On the final pass, most M11 bolts turn another 90°, but the medium-length bolts at the front and rear of each head turn only 50°.
The inner M8 fasteners form a separate group and finish at 22 lb-ft. Keep bolt lengths organized during teardown so a medium bolt cannot silently receive the wrong final angle.
LS-family is not one universal chart
This procedure is tied to the 2002 Camaro LS1. Chevrolet later introduced a short-style head-bolt design, and truck LS-family engines can use different length groups or final turns.
Use new factory bolts where required, clean the blind holes and measure each angle. Aftermarket studs replace the torque-to-yield chart with the stud maker's torque and lubricant specification.
Why 2002 Camaro LS1 5.7L V8 identification changes the specification
The chart applies to the 2002 Camaro LS1 factory-bolt design. Other LS years, post-2004 short-style bolt revisions, truck blocks and aftermarket studs require their matching procedure.
Keep medium M11 bolts identified before assembly and use an angle meter. Do not apply the 90° final turn to positions assigned 50°.
Assembly controls that prevent false torque
- Use the specified thread condition and lubricant.
- Separate main bolts from small or special-position fasteners.
- Use an angle gauge where torque-to-yield stages are specified.
- Stop if a fastener reaches the setting before the joint seats normally.
Chevrolet 2002 Camaro LS1 5.7L V8 specifications can change by model year, engine, platform, wheel, and installed component. Confirm the VIN or engine identity, part numbers, fastener condition, and the current manufacturer instructions before service.
Chevy LS1 Head Bolt Torque Sequence and Stages FAQs
What are the 2002 Camaro LS1 head-bolt stages?+
All M11 bolts receive 22 lb-ft and 90°; standard positions then receive another 90°, while medium front/rear positions receive 50°. M8 bolts use 22 lb-ft.
Why do some LS1 bolts receive only 50° on the final pass?+
The medium-length M11 bolts at the front and rear of each head have a separate final-angle specification.
Can this LS1 chart be used on every LS engine?+
No. Bolt length and design changed across LS-family years and applications.
Do LS1 aftermarket studs use the factory angle stages?+
No. Use the stud manufacturer's torque, lubricant and sequence.
Technical sources
TorqueSheet favors engine- and component-specific manufacturer instructions over unsourced universal values.
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