Matt who started this thread suggests going with something like a Stage6 kit.
These look pretty nice, and way less money. Up to 17hp!
By famous brand Stage6, for a very good price: the Stage6 70cc Cylinder Kit Sport Pro MKII Peugeot Ludix LC / Speedfight 3 LC.
This latest version of the Stage6 70cc Sport Pro MK cylinder can reach between 14 and 17hp, that means 2 - 3 hp more than the older MK 1 version.
This increase in hp has been made possible, among other things, by a new transfer port design emphasizing torque and also ensuring maximum reliability. The oval exhaust port was picked up again and optimized, instead of 5 there are 6 transfer ports to allow for optimal refilling of the cylinder.
The cooling of the cylinder has been worked on and optimized as well, the cooling passages underwent a complete overhaul to allow for constant and efficient heat dissipation.
The kit includes:
70cc Sport Pro Cylinder Peugeot Ludix LC / Speedfight 3 LC
1-Ring Piston (d=47.6mm / pin=12mm)
Cylinder Head
Gasket Kit
We recommend running this cylinder with a reinforced crankshaft to increase reliability, a 17.5mm carburetor (minimum) and a sports or racing exhaust.
Stage6 70cc Cylinder Kit Sport Pro MKII Peugeot Ludix LC / Speedfight 3 LC => for Peugeot horizontal LC engines.
NOT street-legal!