Water Pump Alternatives for BOP/Rover "215" Engines

The British V8 Newsletter - Volume ??, Issue ? - (not yet published)

by: Kurt Schley

Although the following pumps will all bolt-up interchangeably, the following differences should be noted:

1) The distance from mounting gasket to pulley flange is about 4.5" on non-AC water pumps vs. about 3.8" on AC pumps.

2) An AC pump can be made from a non-AC pump by pressing the pulley flange back further onto the shaft.

3) The curved-blade impeller on the Buick 300 pump is said to be more efficient, moving 14gpm at 100rpm.


1962-63 Buick 215 w/AC - part number 1388513

1962 Oldsmobile F-85 w/AC - part number 382694

This is a non-AC pump, right? Can you recall whether it's a Buick/Olds (1389457) or a Rover pump?

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1964-1965 Buick 300 (Was this used on V6 too?)

Is this a Buick V6 water pump?

Disclaimer: This page was researched and written by Kurt Schley. Views expressed are those of the author, and are provided without warrantee or guarantee. Apply at your own risk.

Photos by Kurt Schley. All rights reserved.