This kit is currently not available for purchase online. To order, please contact DRI at 619-258-6306 and speak with one of our sales representatives who will assist you by collecting the required specifications and placing your order. 

Big Bore Kit

Kit Includes:Piston and Head gasket
715cc (12-1) $275.00
727cc (12-1) $275.00

-105mm is largest piston that can be safely put in stock cylinder and still be used with Nikasil plating. If larger piston is used cylinder flange/skirt will crack.
-Nikasil plating offers maximum performance, reliability and engine cooling
-It is inadvisable to install steel big bore sleeve in the Raptor 700

*NOTE: Cylinder must be stripped, bored and re-nikasil’d at an additional cost

Replacement Head Gasket
#H-2027 715cc $49.50
#H-153 727cc 105.50mm $49.95