I just edited post it should read HP per kg, I had this
dilemma with a friend trying to choose either a gen3 v8
or toyota lexus twin cam v8. Power to weight regardless
of the technology the Chev pushrod heads came out on top.
Looking at the bottom ends hp to weight the chev again.

Bakat yes please if its complete with rocker cover.

Id love to have those weights for those heads DD.
My guess is the GA16DE is around 20-21kg or 10% less than
similar sized ca18de and the KA24DE 5% more than SR
while the QR20DE in between the CA and SR.