Crow Cams Genuine GM LS1 Early/Long Bolt Lifter Overhaul Kit
Crow Cams Genuine GM LS1 Early/Long Bolt Lifter Overhaul Kit
LS1 Early/Long Bolt Lifter Overhaul Kit provides the specified fastening hardware for a compatible engine assembly. Follow the genuine fastener instructions and verify the exact application and supplied quantity.
Product specifications
| Supplier part number | LS1LIFTEROHAUL |
|---|---|
| Component brand | Genuine GM |
| Product category | Engine Parts |
Application and fitment
Early LS1 engines with the original long/three-length head-bolt arrangement, generally before 2004. Verify the actual cylinder-head and bolt configuration.
Supplied contents
- 16 × GM 5250 hydraulic roller lifters
- 4 × GM 12595365 lifter guides
- 2 × GM 12498544 head gaskets
- 1 × GM 12498545-2 early/three-length head-bolt set
Only the components expressly listed for this SKU are included. Other related products are separate unless the selected package explicitly includes them.
Installation and configuration
- Confirm engine and cylinder-head compatibility, supplied quantity and the correct hydraulic or mechanical valvetrain type.
- Check lifter preload or mechanical lash, geometry, oil supply and all spring/rocker clearances. Do not apply pushrod-engine instructions to a DOHC hydraulic lash adjuster.
Recommended associated products
Only purchase components required for your actual engine configuration. Included kit components are already accounted for; separately listed alternatives must not be added cumulatively.
- Recommended: Crow Cams Genuine GM LS Cam Retaining Plate Kit — Cam-retaining hardware service option for a compatible engine build.
- Optional: BTR Chromoly Pushrod Set | 7.400in x 5/16in | GM LS — Pushrod-length option only after measuring the assembled engine.
Alternative packages — choose one
These are optional alternatives, not additional required purchases. Select the version that matches the intended engine, existing components and complete package contents.
- Optional: Crow Cams / Genuine GM LS1 Lifter Overhaul Kit - 2004 onwards — Complete engine-specific overhaul alternative. Do not combine with a standalone lifter kit when the same lifters and guides are already included.
BBT product selection and workshop support
Built by Boost & Tune is an authorised Crow Cams dealer and performance engine workshop. We can assist with the correct camshaft profile, compatible valve-train hardware, engine preparation, installation and calibration. Provide the exact engine code, intended use and existing components so the complete package can be checked before ordering.
Vehicle Fitment
- Chevrolet Corvette C5 Ls1
- Holden Commodore Vt Vt Ii Ls1
- Holden Commodore Vx Ls1
- Holden Commodore Vy Ls1
- Holden Commodore Vz Ls1
Confirm chassis, engine, drivetrain and production-year compatibility before ordering.
Built by Boost & Tune Support
BBT can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.