I have found multiple posts where people have put heads for a 5.3L engine on a 5.7, but I was wondering if the reverse would also work. I have a friend who has a brand new set of 5.7L heads he can give me for free if they will work. I have a cracked head and therefore must replace, and was wondering if they will work properly, or have a different compression ratio, or any other issues I am not considering. Does anyone have any thoughts on this?
Thanks!