Fitment 99-24 YZ250 and 16-24 YZ250X
This is a kit to buy without sending any parts to us. If you would like to send the parts of yours that aren't included to get the top end back assembled we can do that. If not you will be getting the following.
- 265 or 295cc cylinder ported to your desired power delivery.
- Modified stock head cut to your  desired octane.
- Top end gasket kit.
-Small end bearing.
- Piston kit.
- The main power valve and two side power valves.
- Parts will also be vapor blasted.
- Shipping is included. 
There is more info in the Engine Package section of the website.
Turnaround is 2-3 weeks. We have the parts in stock but they are modified to your specs and plated after purchase.