- Joined
- Feb 22, 2011
- Messages
- 572

hmm.... looks interesting.... 3D printing Aluminum? https://i.materialise.com/en/3d-printing-materials/aluminum
It's been estimated that 40 to 50 percent of the RH4 850 heads were cracked at the intake guide hole from the factory. I don't know how true this is but I have a shelf full of them that are difficult if not impossible to fix. Jim
End the speculation, buy all of my tooling , machining programs, and intellectual property. Whilst not officially on the market, I'm dealing with various would be buyers at the moment, so, when I sort out who's serious and who's not, it will be advertised widely for sale. All the hard work is done. Not for the faint of heart, but a good solid business.
I would write the cheque immediately, only problem is I recall you offering this information not long ago-
Fullauto said-
"If I really, really hated someone, I'd sell them my business! "
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Can these heads be made from billet? I haven't a clue, just asking.
I talked to a gearbox specialist about AMC style gearboxes for racing a few years ago.
They had an approach based on machining sections from billet and bonding. What we talked about wasn't the integrity, which had been proved elsewhere, but more if they could be accepted in vintage/classic racing. The idea was to reduce set up cost compared to developing cast cases. In the end they didn't go ahead, I think they had plenty of other things to keep them busy rather than compete head on with TTi.
However, I suspect the integrity of the bonding might be under greater stress with the heat generated in a cylinder head!
And the concours market and maybe race eligibility could still limit the market.
Knut you lost me there, I am talking about availability of a Commando head not about cheap fixes. A Commando head is usually very well rebuildable to new (or even better with bronze exhaust threads). By the way I am still using my 45 year old original ‘rotten swiss cheese’ Commando head.
Ken a quick search on the net: fullauto heads are still offered by Andover Norton and Holland Norton Works.
considering thats number 175 head, I doubt thats the last known headHaving the last known Fullauto Head...priceless.
worntorn,I would write the cheque immediately, only problem is I recall you offering this information not long ago-
Fullauto said-
"If I really, really hated someone, I'd sell them my business! "
![]()
That head is #5 off the one I bought so it is probably from the same batch from 2016 ?
Mine was the last one sold by Fullauto. No 248Last FA head, I have booked one out as sample here at AN. It will not be sold. Might not be from the latest batch but as soon as it was announced it was put aside so we did not sell them all.
Mine was the last one sold by Fullauto. No 248