The 560 is the ultimate M117 engine. This family of engines was introduced in 1969 with the 3.5l M116 and was followed in 1972 with the 4.5 M117. The M117 is a longer stroke version of the M116. Both engines share a SOHC design, 2 valves per cylinder and always had fuel injection.
These engines evolved over time with the final iteration coming between late 1985 and 1991. The 560 was the largest M117 engine offered, although to be pedantic it is actually 5.5 litres. The M117.968 was offered in in the second generation W126 and and is the subject […]
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