I have a brand new sbc 383 stoker motor with about 100 miles. Yesterday at the mounds I got mud in my motor. I went into a puddle and it it stalled in the middle of it. I pulled the spark plugs a couple had water droplets, one had mud on it. Starter wouldn't turn over the motor so I had to turn it over by hand from the flywheel. When I did, thick mud came out one of the spark plug holes. Checking the oil from the dipstick, it look fine. The air cleaner inside was dry and inside the carb I seen no muddy water. My exaust was submerged and thats where I think it came in at. What do I do now to clean it out and doesn anyone think it will have to be remachined, of so what, just the cylinder walls? Any advice will be appreciated.