Description: BOSS 302 Water Pump Impeller
Year: 1969-70
Model: BOSS 302 Mustang & Cougar
Finish:: Bare steel
Dimensions: 5/8" bore, 3.9375 OD, 1.4062" center hub height

Jack's Comments:

We have used this stamped steel service water pump impeller for our rebuild water pump service for several years and have found it to cool effectively as the production original cast iron impellers.  

Ford testing documentation shows this design will produce cavitation and cost you 10-15 horse power at very high RPM's.  We reproduce an exact copy of the production BOSS 302 impeller if you are looking for maximum power from your BOSS 302.