Frankie17 said:
I find it a little strange for anyone to write off the possibility of Uk production
One of our largest manufacturing contributors to our GDP is motorsport where we have an abundence of talent and capacity Most of the F1 teams are Uk based for a reason
there are several Uk motorsport casting companies i have dealt with who are more than capable of small batch production
Barron clark castings produce the Gold star heads for some UK specialists
Staveley castings produce Alloy Ariel 500 single heads for some Uk trails guys
Uk race castings producing classic car heads and blocks
BCP castings motorsport castings and CNC finishing
Illmoor engines casting and CNC machining
Geo fisher casting OEM for rover etc
As for the comment regarding Commando prices , most dealers are selling usable stock machines around 9- 10k (i am talking about real world bikes that actually sell )
You have a few points here which I can accept, you certainly have a better knowledge of the UK casting capability than I ever will, even if I would get nervous going to talk to someone who does work for F1 teams for a conversation that included money! Particularly when they expect me to cover their full cost of development up front. These companies are not going to take any of the risk and make their own investment, which is my main criticism of British industry rather than capability. (Said after a 40 year career in aerospace industries).
So I looked for a new Gold Star head, and indeed, I can buy one for about £1000 if I include VAT and some shipping. I might also need some rocker boxes which are of course integral on a Norton twin, as of course is the second combustion chamber! So all in all, with a more complex casting and machining operation, the likely costs and relative prices are somewhat similar! I have no idea on potential volume, but there are still quite a few Gold Stars out there.
I did look at Ariel and Vincent head availability and prices but they are not as freely available, however I know others on here know the prices. There is a replica market for these bikes, as there is for Manx and G50 engines, as well as restoration.
So in conclusion, if you want to produce a Norton twin head in the UK, it is possible, if
you make the investment, and somehow access the drawings you need for the baseline and possibly also access a revised port design to develop the widest potential market, and invest up front in manufacture. But nobody did it, so nobody actually knows what that would cost, or how reliable a supply they could achieve.
Ken has made the initial investment, financed production batches, supplied to retail outlets who maybe didn't make so much of an investment? (I don't know of course)
As I understand it Ken is also a patriotic Australian, and prefers to keep production in Australia, not least where he can keep a better eye on what happens.
So when I needed a head and was frustrated with what was available on the used market, there was a new one available, and I am pleased with it, and have used it about as hard as I can.
Let me know when there is a UK sourced alternative available, I won't hold my breath.
Who needs to make the investment of time, money and heartache, when they can simply buy in at the volume they are ever likely to need?
Thanks to Ken for vision, investment and tenacity, and the knowledge and contributions of Jim Comstock and Mick Hemmings.