Good day all. On both my 75's, impeller and housing (aluminium) are totally ruined. Here in South Africa there are NO spares at all for Chrysler motors. So, my , perhaps fuzzy , idea is, to use a bilge pump per motor and connect the output to the internal water-pipe which goes to the head.I obviously have to drill through the leg and fit proper fittings. That's not a problem at all. QUESTION: WILL A 500GPH BILGE PUMP SUPPLY SUFFICIENT WATER TO COOL THE HEAD ( 1 MOTOR PER PUMP ). The 500gph pump uses 2 amps. And as I understand it, a 75 hp on some 2500 / 3000 revs will create a force of 6 to 8 amps. So, sufficient to charge the battery. I hope I am right here with the power assumption. Need to know however the pressure for cooling. Maybe a weird question here. Hopefully some-one can give me some advice. Tks. Jean