What springs are this
 

I got me a pair of 243 heads off a 08 5.3.. the valve springs each have blue marks on the side (not blue springs just have blue marks). My ? is whats the max lift of this springs and would they work with my cam XR273 HR-12 220/224 .530/.534 112 lsa

Sound like stock springs to me, and if they are, it doesnt matter what stock springs they are. Throw them in the garbage and buy real springs.

A great budget spring for that cam that would last forever are the PAC1218's. Good to .600 lift and there cheap. If you want a little more assurance and dont mind spending a little bit more pick up a set of their 1518's, they are good to .650.

Ya the are stock but, whats the max lift on them.. Are the .525, .550, .580

anyone else

Max lift is prolly around .500

isnt it a .525 max lift

Probably. But they are made for stock (read SOFT) lobed cams. I would not recommend running an aftermarket cam of any kind with stock spring regardless of what the lift is.