- Improved Cylinder Wall Strength
- Improved Reliability
- Allows Higher Combustion Pressures
We can carry our CNC machining to your Astra H VXR engine block (Z20 LEH) to increase the strength of the cylinder bore walls, transforming the open deck block to a closed deck block, once fitted the block face will be decked to provide a perfect finish.
We can also provide cylinder re-boring and honing for over size pistons.
- *Price does not include any stripping of your engine, rebuilding or shipping*
- **Your head gasket may require drilling to align water ports for stock coolant flow**
- ***Engine will require honing, or a re-bore and hone after fitment and then decking, we can do this or it may be done at a shop of your preference***