the 5.7 was improved over the years with stronger rods and better crank and other refinements. It was never in the the league of a benz diesel of course but the cars had a reputation for getting 30 mpg highway with their ubertall 30% overdrive tranny.
Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. [SIGPIC]
..I also have a 427 Cobra replica with an aluminum chassis.
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