norvin - vincent hrd engine shoe-horned into a norton featherbed frame, very tight fit i can tell you, loads of engineering done to the bike by the owner, you can just see the handmade finned aluminium oil tank and the carb manifolds to name just a few of the trick bits, well used too, i was ear-wigging in on his converation and he's just come back from a classic bike rally in the shetland isles.