Thread: 351C, 400M ballance?
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Old 02-11-2007, 02:53 PM
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Originally Posted by olddog
Are the 351C, and 400M internally or externally ballanced?

I've been through all my books putting data into a single spread sheet for all Ford pushrod engines, and I'm missing these data points. I wanted everything in one place so I could compare.

Thanks
The 351C is externally balanced - it takes a 28oz externally balanced flywheel. Check me on the exact weight, it's twenty something ounces, I'm ALMOST positive it's 28, but I could be off an ounce or two. There's only two weights used in the Ford family that I know of - 20 something ounces, and 50 something. The 351C DEFINITELY uses the 20 something, and I'm almost positive the number is 28 oz.
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