About This Product
LS2 / LS3 Non-VVT Timing Cover
This GM Genuine LS2/LS3 front timing cover is the correct non-VVT timing cover used on LS engines without Variable Valve Timing. It is commonly used when converting Gen IV VVT engines from 2007-2013 to a non-VVT camshaft setup, ensuring proper cam sensor alignment and reliable engine operation.
Part Number
- GM Genuine: 12633906
Product Features
- OEM GM quality and fitment
- Non-VVT design for LS2 / LS3 applications
- Correct cam sensor positioning for non-VVT camshafts
- Durable aluminum construction
Engine Compatibility
- Fits GM LS-based V8 engines using non-VVT configurations
- LS2 6.0L
- LS3 6.2L
- Common conversion use for 2007-2013 5.3L, 6.0L, 6.2L VVT engines
Common Engine Codes
- LC9, LH6, LMG
- LY6, L96, L76
- L92, L9H, L94
Performance Benefits
- Required for proper VVT delete conversions
- Ensures accurate camshaft position sensor reading
- Prevents clearance issues with non-VVT camshafts
- OEM reliability for long-term durability
Warranty
- GM Genuine Parts manufacturer warranty
- Direct OEM replacement for LS2 / LS3 applications
Important Fitment Notes
This timing cover is intended for non-VVT camshaft configurations and is commonly used during VVT delete conversions.
- Not compatible with VVT camshaft setups
- Must be used with non-VVT camshaft and timing components
- Recommended during camshaft swap on VVT engines
- Verify compatibility before purchase
Installation Information ›
- Professional installation recommended
- Replace front cover gasket and crank seal during install
- Ensure proper torque specifications are followed
Note:
This timing cover is required when converting VVT engines to non-VVT camshaft setups. Using the incorrect cover may result in improper cam sensor operation and engine performance issues.

