I have a few [very few] NE cylinders in stock. The main parts needed to convert the WC-1 motor to the NE version are the cylinder, head [different bolt pattern], head bolt kit, exhaust spacer, and various gaskets. The average cost for the Whizzer upgrade kit is $466.xx plus shipping. I have been supplying the needed parts for $375.00 plus shipping. The NE upgrade kit includes several parts not needed or doesn't work correctly. The kit has the larger 22 MM carburetor, however the carburetor is too large unless you install the NE camshaft [$106.30], and the carburetor doesn't have a breather. The kit also includes a piston & rings, not needed because the WC-1 doesn't go far enough to need a new piston & rings. The kit also includes an exhaust manifold that fit the new larger pipe and won't fit the original WC-1 pipe correctly.

Hope this information is helpful,
Quenton
EZ MOTORBIKE COMPANY