Hi all 
i met a guy at a guzzi meeting who h justad rebuild his 3.5 engine using  VW lupo pistons. 
unfortunately he didnt know exactly what pistons he used... 
Anybody here tried these pistons? i had a look at the mahle site, and the pistons are remarkably similar to the morini pistons. 
The result would be 420 CC, a bit more power out of the old morini wouldnt hurt either. 
cheers, 
       hubert