o-ring head gasket mod?

[benji]

I think I might try a malossi head n see if it fits ok... I'm looking to squeeze a little extra power outta this thing since I'm only gettin 63-66cc. If it doesn't fit my airsal jug I'll just save up for a malossi bbk, or a polini i found on fleabay

[1man8scoots]

Vespa uses no head gasket with red loctite. I'd try the malossi head over a stock one.