Lot 235
A c.1974 NVT 'Cosworth' Prototype Engine
The Autumn Sale - The Classic Motorcycle Mechanics Show, Stafford|9 October 2021, 12:00 BST|Stafford, Staffordshire County Showground
A c.1974 NVT 'Cosworth' Prototype Engine
The experimental engine offered here appears to be a test-bed for Cosworth's DOHC four-valves-per-cylinder technology applied to a water-cooled twin-cylinder engine with separate gearbox; as such, it might have been conceived as an update for the Commando engine that would have been cheaper than tooling up for the all-new Cosworth-designed Challenge. This engine and the NVT prototype motorcycle in this auction were purchased at NVT's liquidation sale by Bob Joiner and Cyril Chell respectively. The vendor bought both the motorcycle and engine from Messrs Joiner and Chell, and the engine has been on static display ever since. We are advised by the vendor that he has had the engine apart to check components and that they are all present. The engine's mechanical condition is not known. There is no engine number.


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