The Gruppo Velox is an Italian kit manufactured by the very enterprising Luigi Parena in Turin immediately after the war in order to transform a side valve engine to an OHV high-performance engine. It consists of an aluminum cylinder, an 82mm piston and an aluminum cylinder head with crossed pushrods using (if I translate correctly) a single valve spring. Intake valve diameter was 1.250" exhaust 1.813".
Apparently there were kits to fit either a BSA M20 or a Norton 16H- many of which would have been "available" all over Europe. No idea how many were sold, the link below suggests only 30.
 |
| Motorcycles-for-sale |
 |
| Classic-motorcycle |
Stock flathead M20
Boy I'd love to see the innards. Thanks, Mr. G.
ReplyDeleteI looked , not much info online. If it is there, Dave will find it ;-)
ReplyDeleteSome more info here:
ReplyDeletehttp://pub37.bravenet.com/forum/static/show.php?usernum=3155626639&frmid=16&msgid=1395811&cmd=show
Thanks JP, that site pretty much covers it!
ReplyDeleteThanks, you bet.
ReplyDelete