Low oil pressure on SBC
A long time ago I had a problem with my 307 sbc with low oil pressure. I rebuilt the 307 with new crank bearings, and replace with a high pressure oil pump. Once I had the 307 together and had it running, the oil pressure was very low at 40psi cold, and 5-10psi hot. It should read 80 psi cold, and 40psi hot. I discovered the distributor was cause of the problem. The oil travel around the groove of the distributor housing then through the lifter gallery was leaking. I replaced the distributor with another one and to my supprise the oil pressure jumped up 80psi cold and 40psi hot. If any of you guys have low oil pressure on your sbc, before you take the block apart, check the distributor.