Use a high volume pump if you are using any type of forced aspiration, or a remote oil cooler. On a noramally aspirated engine without the above noted items, it does not need a high volume pump. A high volume pump will heat up the oil more, pump excess oil to the top of the motor, and it also take more horsepower to turn a high volume pump then a regular pump.
What does oil have to do with freeze plugs ?????
The freeze plugs are on the outside of the block where there are water jackets. They are leftover holes from when the block was cast. They also serve to pop out if the water in the block ever freezes. This prevent the block from cracking if the event should ever happen.
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