Brake line change required from drum to discs?

[TSquare]

I’m looking to upgrade my front brakes to discs on a 67’ Cuda. Do I need to change the lines or will the existing work? I’m asking because the lines were replaced about 5 years ago and are like new. Appreciate any feedback!

 

[dano]

Hard lines remain the same, soft lines will change.

Which front disks?

 

[TSquare]

Hard lines remain the same, soft lines will change.

Which front disks?

Ordered the SBP dr diff stage 1 kit
W/stainless lines and block/valve

Also ordered 7/8 bore MC and a front end rebuild kit separately.