360 parts

I live in Corpus Christi so that alone could save you a bundle in shipping!! I noticed that you're looking for 302 or 308. FYI, 308 heads have more CCs than 302s so you'll lose some compression with 308s. I have a set of 80-85 596, 360 heads with 1.88 valves (lower CCs than the 308). If you're interested send me a PM.
Also, I'm not sure if 302s came with hardened seats (the 596 does) so that might be an extra cost??

Good Luck with your search!!
treblig