Re: 352-390-406 FE Fored
The bore on a 406 would be 4.13. Late 406 blocks were crossbolted. Also there should be a "HP" cast into the block .Bore dimension on a 352 is 4.00 inches. 352 cast into the block doesn't mean it's a 352.It could be any FE block from a 330-428.
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