Toyota M engine

The Toyota M engine is a family of longitudinally mounted straight-six engines built by Toyota Motor Corporation from the 1960s through the 1990s. All were overhead-cam designs: the family started with a chain-driven single camshaft and evolved into a belt-driven DOHC system after 1980. Every M used a cast iron block with an aluminum cylinder head and was built at the Toyota Kamigo plant in Toyota City, Japan. The first member was a 2.0 litre, 1,988 cc, two-valve SOHC engine produced from 1965 through 1988 with a square bore and stroke of 75 millimetres. The M-E, sold only in Japan, was the first Toyota engine with fuel injection, and the 4M-E was the first Toyota engine with fuel injection outside Japan. For over 30 years the M family were Toyota most prestigious engines apart from the uncommon V8, found in the large Crown, Mark II and Supra. In the Transport Atlas it marks the step from Toyota early sixes to the later JZ family.