Sorry if I offended you Edsel-Dan re: my incorrect comment concerning an Edsel having a ribbed roof like that on the '58 Ford. You are correct, and I have edited my post to reflect that. . .
My comment re: "AMT's '58 Edsel's chassis, including much of the drivetrain, can be used to upgrade their much earlier tooled '57 Ford Fairlane 500 kit" never was intended to imply that the Edsel's FE engine would be accurate for a bone-stock '57 Ford. However, the balance of the chassis & drivetrain is very useful for upgrading the AMT '57 Ford if one is building a bone stock model, and if one were building a resin-bodied '58 Ford, or working w/ a '58 annual or promo, the FE engine could represent the 352 cu in FE engine introduced in the Ford model line that year (and before you blast me for stating that - yes, one would have to cut open the hood on both the '58 annual and the promo, as they were 'curbside' models). And, swapping an FE engine into a '57 Ford was/and still is a popular swap, as the Y block was all but tapped out at 312 cu in, even the E & F code versions, since it was much easier & cost effective to develop a range of engines w/ more cu in, and room to add more, as did the highly successful FE family of engines. The Y block's unusual head design w/ how the exhaust & intake valves were orientated, was another factor, limiting it's performance potential.
I have edited the portion of my above post, so it doesn't mislead anyone, nor cause such a disproportionate outburst from any other Edsel-types. . .btw - Edmunds ranked the '58 Edsel as #8 on their 100 Ugliest Cars of All Time. To each their own. . .