preferred brake fluid

I am somewhat concerned with the brake fluid boiling as I will be using headers. Thats why I was thinking silicone. Also because the caliper pistons wont seize with silicone. Big advantage seeing how my Dart will sit the winters out.

Seeing how the brake lines are all original ,maybe it's time to replace all of it. Hand forming brake lines aint fun with my weak hands,but a propane torch will help.