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Old 05-05-2006, 08:03 AM
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XcYZ XcYZ is offline
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350 = 4.000 bore x 3.48 stroke
355 = 4.030 bore x 3.48 stroke

A 383 is a .030 over 350 block with a 400 crank:
383 = 4.030 x 3.75 stroke

400 = 4.125 x 3.75 stroke
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