Holden 304 heads group a????

[H1GHROLLR]

hi a mate just brought a set of 304 heads and he was told they were groupA

the numbers on the head are 13G0 at the front of the head and
92050019 at the back . . .

i own a set of group A heads my self but there at my engine builders so i cant compare them is there anyway you can find out if they really are . . . .

[Pub247]

theyre d port like reapers heads arent they??