Crow Cams / Genuine GM LS3 Complete Cylinder Head
Crow Cams / Genuine GM LS3 Complete Cylinder Head
LS3 Complete Cylinder Head is a supplier-listed engine or valvetrain component supplied through Crow Cams. It must be selected by exact part number and engine configuration rather than by vehicle name alone.
Product specifications
| Supplier part number | 12675871 |
|---|---|
| Component brand | Genuine GM |
| Product category | Engine Parts |
Technical and supplier information
- 821 casting cylinder head complete with .550" lift springs, retainers & locks Spring Specs:90 lbs @ 1.800" Installed height275 lbs @ 1.300" Installed heightCoil bind @ 1.220" Installed height
Application and fitment
L98, LS3 Supplier part number: 12675871
Supplied contents
The part or quantity described by this SKU is supplied. Related components, installation hardware and ancillary parts are separate unless explicitly stated.
Installation and configuration
- Confirm exact engine and part-number compatibility, supplied components and all required service hardware before installation. Follow the supplier and engine-manufacturer procedures.
Associated products and selection
BBT can confirm the exact engine-specific supporting components and provide a complete parts recommendation before ordering.
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.
Freight and order confirmation
This is a large/heavy component that requires freight to be confirmed for the delivery address before final supply. BBT will confirm the exact component identity, availability and freight method before the order proceeds. It is not treated as a standard small-parcel Crow item.