Mid-sized Six-cylinder Head Design
The mid-sized six carries over the 1951 190SL's four-cylinder SOHC general design, with non-cross-flow (reverse-flow) ports all located on one side of the head casting.
The combustion chamber design is very similar to the pre-WW2 Chevrolet "Blue Flame" OHV six-cylinder, with a "dog leg" L-shaped chamber. The exhaust valve is deeply recessed in a pocket containing most of the chamber volume, and the much longer intake valve is nearly flush with the deck surface. This design of inlet tract, with the large valve opening directly into the cylinder from an individual, semi-downdraught port, provides excellent gas flow resulting in the high volumetric efficiencies of these engines (157 and 158 BMEP from the 2.2L and 2.8L fuel injected versions)
Read more about this topic: Mercedes-Benz M130 Engine
Famous quotes containing the words six-cylinder, head and/or design:
“America is like one of those old-fashioned six-cylinder truck engines that can be missing two sparkplugs and have a broken flywheel and have a crankshaft that’s 5000 millimeters off fitting properly, and two bad ball-bearings, and still runs. We’re in that kind of situation. We can have substantial parts of the population committing suicide, and still run and look fairly good.”
—Thomas McGuane (b. 1939)
“Being wakeful for her sake,
Remembering what she had,
What eagle look still shows,
While up from my heart’s root
So great a sweetness flows
I shake from head to foot.”
—William Butler Yeats (1865–1939)
“The reason American cars don’t sell anymore is that they have forgotten how to design the American Dream. What does it matter if you buy a car today or six months from now, because cars are not beautiful. That’s why the American auto industry is in trouble: no design, no desire.”
—Karl Lagerfeld (b. 1938)