Hi Studidudes, Does anyone know what the "normal" engine hot oil pressure range is supposed to be for a 1956 Studebaker 289 V8 engine? All I know is that the oil pressure is normally lower in 62' and earlier engines than in the full flow filter engines. I'm using 15W40 weight. Cold I'm running about 55 PSI, but when at normal operating temperature of 180 degrees, the pressure run about 2-3 PSI at low idle (600 RPM) and around 25 PSI at 2000 RPM. Not too sure above that RPM. There is no decrease in oil pressure when you accelerate under load, so I'm confident that that main bearings are fine. Engine sounds perfect, no noises or audable indication that something isn't getting lubricated. Just looking for communists under bedsheets, maybe. Thanks,
-George-