Hi volume oil pump vs standard volume pump

moparmat2000 said
My pops had a numbers matching 79 lil red express we restored years ago. Truck had 100k on it, and had never been apart until we restored it. Std engine was an E58 360. The truck had a standard volume pump in it.

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Correction on the E58 being the standard engine.
The Little red express engine was a Factory modified version of the e58.