Asus RT-5300 - able to install via GT-5300 firmware?

Hi, is it possible to install the Asus GT-5300 firmware on an Asus RT-5300 (without it entering the world of bricks)?
I am assuming the answer is likely 'No', but folks with a better understanding of the intricacies of porting between similarly-named routers - but with possibly differing chipsets - may be able to give a definitive answer.