Thanks for the feedback. I'm going to have to fabricate the front head steadies out of some stainless tube. As Swarfy says they are some what a bit of a rarity.
Perhaps some further background is in order here. To say "restore" and/or "butcher" would be to imply there was something there in the first place.
What I started with was 2 plastic milk crates 3/4 filled with some random engine parts bought off fleabay. Probably said a lot when the seller described it as an A7 Plunger Superflash motor.....but at this point, what did I know.
Anyhow, on receipt of said motor a minimum of research revealed I had a few A10 parts that were both plunger type, and a couple of S/A bits just to confuse things. Half of what I had went in the bin as being obviously knackered. That left me with 2 unmatched cases, a decent crank on original grind, a set of barrels 0.40 thou over, a head with no valve gear, a couple of timing gears, and a rocker box complete but full of dirt and a large dead spider... (where's that stick?). The only reason the whole lot didn't get chucked in the bin at this point was the fact that this whole SF thing was somewhat intriguing and warranted some further investigation.
Further research revealed that if I wanted to restore this back to original SF, I would need a sizable mortgage, and years of my limited time left on the planet to find all the original parts. So that put paid to that option. Given the original idea had been to build myself a Triumph or Harley chopper, the decision was made to continue down that path, but using this oddball BSA motor instead. As it turned out, the further I progressed the less I thought a full on chopper frame would do this thing justice. So things veered off on another coarse. That being to keep it reasonably period at least, but with a custom twist.
The motor at least has been built to SF spec's - with the notable exceptions being the carb and duplex primary/clutch set-ups. The rest is standard A10 GF most of which are either NOS or decent second hand, and while still expensive, are at least obtainable.
The intention here has never been about the money, or making a buck by selling it to some poor unsuspecting mug. What it has done though is given me hours upon hours of satisfaction, frustration, despair and enjoyment. Much has been learnt through trial and error. And as things have progressed I have also developed a fondness for a bike marque that in the past has never interested me in the least. And for much of that knowledge and enthusiasm the thanks need to go to your good selves.
Cheers
