Chung Yang CY46 and GP460 long block assembly with ADA Racing 13:1 head kit installed. We remove the cylinder from the long block and then machine and assemble it in-house. These come with a 13:1 premium pump gas dome installed. This is a modified engine assembly and it does not come with any warranty. This is considered a 'race engine' and the modifications void the factory Chung Yang warranty. The end user is responsible for proper assembly of the components to complete the engine and is also responsible for proper carb tuning.
This is sold as shown.
The cylinder is NOT ported, it is a stock cylinder only machined to fit the head kit. We do not offer cylinder porting.