Shop › R16 Cam Core Image 1 of 1 R16 Cam Core $150.00 This is a cam blank ready for whatever grind you want to do on it. This is for the Datsun Roadster R16 motor. Quantity: Add To Cart Added! This is a cam blank ready for whatever grind you want to do on it. This is for the Datsun Roadster R16 motor.