Bought a pair for my 318 last fall. Received 2 different casting numbers. Bonus, and maybe just luck, the little egr air ports were already tapped so I could simply locktite and screw in those little plugs to block them off.
There was also a #714 head, I have a set here, was told those are same as the #302 heads. Just like there are 2 different casting number magnum heads that are supposed to be identical.
The 714s I have came off a 91 318 out of a Dakota I parted out.
Last year for LA 318s and they have the sticky dots on them for temp like they've been redone.
If I use them they will come apart at least for inspection first.
I also have a set of #302s that I sent thru the machine shop a few years ago that I haven't used yet, standard local mom and pop valve job done there, but I do have a plan to use those ...
They will also come apart to check for casting boogers and those cleaned up at least.