Reground Crankshaft (Core)

These are used cranks with reground rod and main journals. Each crank is checked for cracks and wallowed out dowel pin holes. We only grind to 10 under, 20 under and 30 under; any further and the bearings are getting too thick. We also grind on the high side of the scale to insure maximum life out of the crank. A 10 under crank will read 2.155; a 20/2.145, and a 30/2.135. If you mic a used crank and the last number is below a 4, then you shouldn't run it. Example: The reading you get is 2.15382. This is a worn out 10 under crank and should be turned in for a 20 under. All cranks are sold on an exchange basis, cores must be usable.