SB Chevy STD pressure 35-45 PSI, SB Chevy high pressure 40-65 PSI, BB Chevy STD pressure 45-55 PSI, BB Chevy high pressure 50-75 PSI, BB Chevy extra high pressure 60-85 PSI
Oil Pump Springs for Small & Big Block Chevy
B&B Oil Pump Springs are designed to regulate pressure by changing the bypass pressure on the oil pump. A high pressure spring will force more oil through the engine, a low pressure spring will allow more oil to recycle within the pump. Springs have a PSI range and color coded for easy identification.