I would say that for a '55-2 pick up, one should look more at a car diesel engine, smaller, lighter, powerful and driven pretty much like a gas engine. What I would consider my dream engine for my '57 Suburban is the Mercedes diesel engine found in mid-size Mercedes cars as well as in the Dodge Sprinter vans. Depending on the years, it is an L6 or a V6: plenty of hoomph, very thrifty to run, quiet... And not a heavy monster of an engine: ideal for our smallish trucks! And a loaded Mercedes sedan can cruise all day at 160mph no sweat... This engine is also available in the Jeep Grand Cherokees, I believe...
