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
*Use with '06-'09 crankshaft
470cc (13-1) $275.00

Kit Includes: Cylinder, 480cc Piston, Head gasket and steel base gasket
*Use with '06-'09 crankshaft
480cc (13-1) $995.00


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

Replacement Head Gasket
#5TA-97 $49.50