Pro comp head failure

I am not a metallurgy expert at all. But the casting quality of the Bloomer’s I have looks WAY nicer than the Eddie’s I replaced them with

The BPE, Sidewinder, Speedmaster, ProMax, and a few other all get shipped in on the same freighter. Then the work begins but like you said the castings are so much nicer. Not sure if they weld up the same as Edelbrock heads or not.