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Blueprint engines arrive ready to install. Because our engines have been dyno tested, the assembly lube has been "washed" from the bearing surfaces. We drain the oil for shipping, so when your Blueprint engine arrives, the bearing surfaces are dry. We recommend pre-lubing your new blueprint engine with a pre-lubrication tank. This small canister hooks to shop air and forces oil through any oil sending unit on the engine. In just seconds, oil is all the way to the pushrods, and you will have great lubrication at start-up.