What head do i have? Gsr or b16

So i bought a head from a guy he told me it was a b16 head with gsr cams. But on the head it has “p-72” stamped on it ik that will tell you what head it is when i looked it up it said gsr not b16

Any help

Get your google on.
here
and here
and here

All of those should be some what helpful in identifying the head. From what I’ve read, it’s a GSR. I’m not a Honda master by any means though.