stock LS headlight reflector diameter ?

[riozlander]

i have been trying to find out what the stock diameter is of the inside chrome reflector is for the LS stock headlight housing. i cant find any info and i have not found a worn oxidized set for sale to brake open and measure

they look to be 6 inch around maybe 8 inch?

the reason why i ask is because i want to retrofit these in to a set of housings
these 2 are both 7 inches around. i understand the tops would be covered some and the housings might need to be cut up top to fit them in the housings.

but im wondering just how much room there could be