Hi all, I’m due to replace the water pump on my ‘66 Barracuda 273. The old fittings for the heater hose and bypass hose aren’t going to come out and I need to know what size NPT to bypass fitting I need.
The large threaded hole in the new water pump measures 1” across and the current bypass hose on the car has an external diameter of 1 1/4”. (Air con car)
Can anyone provide me with a size? I’m not concerned with factory correct, just want to get the job done, thanks.