Out of curiosity I purchased these barrels from a stall at Beaulieu at the weekend, they look like un-machined factory castings but if anyone can add to this or give firm identification I would be intrigued to know.
The bores are tapered 66.25mm at the top and 69mm at the bottom and the thinnest wall dimension at the bottom is 6.85mm. Inlet ports are 51.4mm x 17.2mm and exhaust ports are 50.25mm x 23.4mm.
Any info would be greatly appreciated.
Steve
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