Moskvitch DM


The Moskvitch DM was an automobile engine developed by Avtomobilny Zavod imeni Leninskogo Komsomola under the Moskvitch brand, for the Moskvich 412.
Design of the DM began in response to the increasing power of Western Europe's competitors to the just-introduced Moskvitch 408. The existing engine's displacement could not be enlarged profitably, so the AZLK team, led by Igor Okunev, started with a clean sheet. It had a very stiff five-bearing crankshaft, and a very high-mounted camshaft. Oknuev, drawing on his experience in motorcycles, saw he could eliminate pushrods and raise the top rev limit, to 5,800 from the earlier engine's 4750.
The cam was chain-driven, and the block, head, sump, rocker cover, intake manifold, and other parts were aluminum. It weighed only, just more than the previous, but produced. It had removable cylinder liners, with both the aluminum oil pump and distributor driven off the crankshaft.
Prototype engines were delivered in 1964. It was tested in racing in summer 1966, before entering full production, in a higher tuned state, producing, in the Moskvitch G4M racer.
It was produced by Ufa Motorniy Avtomobilny Zavod, and the first production engine was completed 15 March 1966. It was first used in the Moskvitch 412 in March 1967. It was also supplied to IZH, which also assembled the 412.
The planned 1975 Moskvitch 356 was to use an enlarged version of the DM, with twin Zenith carburetors, giving. None was built.
This was followed by the 1975 four door fastback Moskvitch C1, with a version of the DM, offering. It inspired the Moskvitch C3, which was very similar but a five-door hatchback. The engine would have been fitted at an angle from the vertical. Neither project reached production.