Spare cracked heads advice???

[Kidd-7]

I have been trying my hand at finding Vortec heads for a while now. No luck; last set was from Craig's list; they were relatively cheap in comparison to bone yards, so I took a chance. Guess what, bad chance... The guy said he'd find me another set, but you know, never came through, so I given up on those. I have this set sitting here with multiple cracks in them. My question: Is there anything worth keeping on these? I figured I'll just scrap them and get some money back, but would like to salvage anything that may be of use. What can you guys suggest? Thanks.