Engine tech magnum heads

Someone here using those particular heads? Akin to finding a needle in a haystack I’m thinking. Pure oem daily driver level head for the Ram pickups or vans they came on. But if it’s what you can fit in the budget, they will do fine, just get them bare. Spec your own valves, possibly add bronze guide liners, whatever level of valve job and any port work and “most importantly” valve springs for the cam you end up using. Fully assembled is not what you want with those.
We bought some of those China made oem iron assembled heads a few years back for a 98 Mazda/Ford V6 pickup and they worked fine. Plain basic replacement head is all they are.