BluePrint GM Style Engines
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      What pilot bearing do I need for my SBC?

      Pilot bearings or pilot bushings used on our SBC will all have the same Outside Diameter (OD) of 1.094"

      All cranks on our Small Block Chevy BluePrint Engines have an OD of 1.094" but the ID of the bearings vary slightly depending on transmission manufacturers needs or tolerances.   Make sure to measure your transmission's input shaft for OD and get one that fits within tolerance.