I've a Galaxy Nexus and on the Galaxy Nexus Development thread, I saw that somebody was asking the stock google kernel 4.3 in a flashable cwm zip for his Nexus 7 so here we go.
I've just extracted the boot.img from the factory image JWR66Y for the "nakasi" and made it flashable.
I don't have a Nexus 7 so I don't tested it ! But I tried the same operation on my galaxy nexus and it works really well.
Just in the case, make a backup of your current kernel !
I'm gonna delete this warning after a few people can confirm me that it works.
I've just extracted the boot.img from the factory image JWR66Y for the "nakasi" and made it flashable.
I don't have a Nexus 7 so I don't tested it ! But I tried the same operation on my galaxy nexus and it works really well.
Just in the case, make a backup of your current kernel !
I'm gonna delete this warning after a few people can confirm me that it works.