Full mod G320RC top end.
Can be installed onto a stock G320RC engine or is a replacement top end for full mod engine 6300. View engine description for modifications done to top end.
Top end comes complete with:

• Ported cylinder
• Modified pistonpiston ring
• Cylinder gasket
• Transfer port/skavenging covers
• Wrist pin
• Thrust/piston pin washer
• c-clip seter
• c-clip set

Porting not shown in picture!