ive got the 251 6 in my 47 fargo 1/2 ton, and have modified the motor using the complete electronic ignition and fuel injection from a 92 chevy 4.3 liter v6. machine the chevy distributor to fit the chrysler 6 and made new intake and exhaust manifolds. it runs awesome and will post pics if any one is interested
but i need a little help here, does any one know the napa part number for a new water pump for this flathead?

Thanks
John