REV Gas Engine 4 Bolt 30.5cc Big Bore Rebuild Kit
Kit includes Motor cover, 4 bolt cylinder head, 4 bolt engine cases, gaskets, lightened piston, piston ring, bolts and clutch holder.
This kit will upgrade your King Motor 2 bolt 30.5cc engine to a 4 bolt REV 30.5cc engine while making it a more reliable 4 bolt design.
It will also increase power with it's larger intake and exhaust ports and lightened Piston.
If your King motor 30.5cc motor is blown then this is a nice upgrade kit for you.