On most car's from the Factory the Oil Warning Light and Engine Shut Down is set at 12PSI . On the Buick 3.8 V6's when it would get Good and Hot out them Oil Lights would pop on at Idle . Sure Clearances to Large . We would install the HV and HP Pump kit and some New 10w40 to give them Engines a chance for more years . On a SB Chevy Street Engine built with a Nice Crank all new parts yes like it should be . The stock pump will be fine . But I still am more happy with the in gear idle oil psi when I am in traffic at out side temp's in the 90's on up with the Z/28 Pump M55A .