Quote:
Originally Posted by cutta
5.7 DP Engine, only difference between it and the 6.1 is the bore. But the factors between the two engines is much different and more favorable for the 5.7. The 5.9 would be an excellent choice as well and would be the cheapest option I'm sure..
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I thought the 6.1 had larger (more CC's) head castings as well as larger valves.