how much oil pressure is needed for a sbc
A well clearanced racing motor, Small Block Chevy (SBC), should be able to run 30W racing oil and have around. 22-25 PSI of pressure at 700 - 900 RPM, with the engine warm, around 170 - 200 degrees F. You should not have. to use 50W racing oil in a SBC that has just been properly built.