Higher performance Racing head for 2 stroke kit 80cc/66cc
Capacity: 6cc; Height Max:46.9mm; Width Max:126.6mm
Anodized/Fully cnc machine made/Alum Design
The racing cylinder head increases the horse power of your 80cc / 66cc 2-Stroke Bicycle Engine and this greatly cools off the engine. 
Would result better performance and longer life for your 2 Stroke Bicycle Engine.
Not for 48cc/50cc 2 stroke cycle gas engine motor bike kit;
 
66cc/80cc Copper Gaskets:
 
This copper head gasket is only for 80cc engine kits
Cylinder head gasket for building a new cylinder or replacing an old cylinder head gasket
Also known as a cylinder cover spacer.
This copper cylinder head gasket is for 80cc motors.
Thickness: 0.5mm