Over many years I gathered most of the parts to build a KSS/RS.
The engine is a mk2 KSS, and has been polished extensively inside -crank and rod. All very sparkly!
The piston look rather lumpy for a KSS, (it's standard size, new) I haven't assembled the top yet but when I do I'll measure compression ratio. (Could it be a KTT piston?)
The barrel is Alfin with standard unused bore. Much bigger finning than a KSS.
Note the frame / engine plates. The lower mount hole doesn't align with the frame lugs, so one or other will have to be moved.
I'll need to make up dummy front engine mount plates (I have a VM pattern) to see which is the best way to go.
Gearbox is late KSS / MSS, Rear plates I'm not sure what model they're off, could be MAF.
Those frame lugs are pinned and brazed, I think they might be difficult to shift... how difficult I don't know.
Has anyone done this? I might have to plough through my 260 Fishtails to do some homework!
Just in case people might not know the background to this KSS/RS project.
The much loved OHC KSS engine was never fitted into the swing-arm frame by the factory. It was too expensive to produce, having vertical shaft bevel-drive OHC, so production of the KSS OHC engine finished in 1948, the final version of the KSS was in the rigid rear, with Dowty (air) forks.
The best bike Velocette never made! Perhaps Ivan Rhodes' was the first one I saw, in 'Always in the picture'
So it has been a project popular with the Velo 'cognoscenti' I think people see it as a genuine Velocette, just one that the factory didn't actually do.