Well, My valve lifters are going out, looks like a few hundred to replace in parts alone( $60 a piece x 12) :(

So I thought, why not just replace the whole head?
I have found a 5m Head and a 7m Head, and am trying to decide which to go with, I have done some research on the 7m Head swap but haven't found much...

Sounds like I'd need 7m Pistons to go with head... just trying to figure out what to go with, any advice is great.

Thanks guys

You should go OEM.
Don't start frankenstiening your whip man.