ford nsd

The Ford DOHC engine is an inline 4-cylinder automotive internal combustion engine with dual overhead camshafts , produced by the Ford Motor Company. Offered from 1989 until 2006, it was initially available as a 2. 0-litre 8-valve engine, and later in 2. 0 and 2. 3-litre 16-valve versions. It powered various Ford models in both front wheel drive and rear wheel drive applications. It was Ford's first in-house twincam engine design to reach volume production.
In Ford's technical reference the engine is given the somewhat anonymous designation of "DOHC". Some sources call it the Sierra engine, but only when used in that car, and in some enthusiast forums it is known informally as the "twincam", or the "twink". Its lack of recognition extends to the aftermarket, as few tuning shops offer options for the engine, and it does not appear in Ford's own list of four-cylinder racing engines....