I think that head will take the same header if you use an adapter plate that fits that head. IIRC from the guy posting on moparts they either moved the port up or dropped the bolt holes down.
To the OP, I’ll have to dig up some gaskets between the two heads and see what’s what. I’ll also be honest and say this is gonna take a while to find. I am near sure to have both gaskets to each head. W2 & W5.
I never heard of an adapter plate needed for a W5 head. The older W2 heads used an adapter plate.
