Head gasket for magnum block and la head

Thanks for
And that one links to this one:
ALERT!! SOUND THE ALARM!!..

Pittsburgh racer has a completely different part number I think because it was custom ordered, not a shelf number. But his gaskets are shown in post 877.
@TurboGLH used C5622 according to post 894.
Thanks for the links, but now I’m more confused lol. I guess if your running la heads on magnum block la gaskets should be the way to go but looks like some water passage shape differences