Budget cylinder heads for a 318

@Dan the man
This is 100% true.
I’ll not argue that a bigger engine will do it better and easier, but there is nothing wrong with the smaller displacement engines. It just takes a little more. For your description of your target, the 318 is not going to have a problem.

Build what ya got and have fun.

I've never understood how people lose it when you build and engine 42 cid smaller 360 vs 318 or even 20 cid smaller 360 vs 340 cause to them it's all about displacement but are ok with 80 cid deficit of a 360 compared to 440.