340 Cast crankshaft and Balance Question

Ok, lets clear this up right quick like. I THOUGHT I had. I guess not. The 318 was NEVER externally balanced. NEVER. NOHOW. NO TIME. EVER. So, that right there proves the two cranks are different. That's why I told you "whichever" to BE SURE to have everything balanced. The only reason ANY BOOK shows a 318 and 340 crank the same is because they had the same stroke and it's a simple misprint......even with the forged crank motors,because even they were not balanced the same. No matter how many times you ask the question, you're still gonna have to have the balance checked. If somebody gives you the answer you wanna hear and you slap it together without balancing, you're gonna regret it.