Dustin, Yes, you can bore out the cylinders but not that much. Typical overbore is 0.030 inch on the diameter or 0.015 inch per side. This will make your 200 about a 203. Some engines can be bored more like 0.060 or 0.080, I'm not familiar with the 200 so I can't say. It's my understanding that unless you have unusually thick cylinder walls it's unwise to bore any more than minimum because bore distortion and ring seal become compromised along with durability.
Can you bolt in a 300 six? Way better plan if it fits.
