My '52 GMC Maintenance Manual calls for a hot minimum oil pressure of 40 psi at 2750 rpm on a new or rebuilt engine while a "used" engine should have at least 25 psi. At idle (425 rpm) the pressures should be a minimum of 5 psi new/rebuilt and 2 psi used. Are there any such specs in a Chevy manual?
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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