Main Studs??

I remember when I was younger, and had a lot more fun with cars, we used to throw stupid stuff together. We built a 307 chevy (I know LOL!) that was thrown together, stock cast pistons, double hump heads, 2.02 1.60 valves, home ported, We threw arp rod bolts in the stock rods, no machining, arp main bolts, again no machine work, and a comp 270h. I have no Idea how that engine held together, or even ran. was in a 65 cj5. with 4.27 gears and the stock 3spd trans. Thing was pretty dang quick, won a lot of street races (don't do it anymore!). That thing regularly hit 6500 rpm with a couple missed shifts hit 7000+! Anyways I grew up and learned better, But unfortunately, it costs me a lot more $$$ to build engine now. But for some reason I just have this urge to build a JY engine, on the cheap, say screw the rules lets see what happens!