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27 Carrillo goes the extra step and actually includes lubricant for the rod bolts. By knowing the exact properties of the lubricant you will be using, Carrillo can confidently provide the precise torque figure that will give you the correct amount of rod bolt stretch. If you have the capability of checking rod bolt stretch, it's always a good idea. But for those of you that don't have a bolt stretch gauge, this can provide some piece of mind that the rod bolts—one of the most stressed components in any race engine--are installed properly.