Not Ranked
Actually the Eagle/Scat cranks are not cast steel. It's a marketing ploy.. They're actually a good grade of nodular iron.
The FE cranks are a "beefier" in key areas then the Chebbies, hence the much reduced need for forgings. It's not uncommon to see OEM cast Ford FE cranks seeing 600-700 hp without failures. That's probably why Kieth Craft uses the nodular iron cranks in his 600 hp FE stroker builds.
I'd also heard that these new "Chinese" (off-shore at the very least) forgings have been racked with problems and quality control issues. I would not trust them, IMHO, until time and useage has proven them reliable.
Dave
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Too many toys?? never!
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