273 Rods work in a 360?

I wouldn't use the small rods if I was building a fresh 400 hp engine.I've had the small 318 rods actually look like spaghetti after being in my 4 speed dart for a couple years....and it wasn't near 400 hp I'm sure.also the 72 318 was the first year for the bigger rod in a 318 and for that year only they are floating like the 340.