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J.Lance · 12-24-2003, 12:45 AM

Do you have a breather on the same side as the oil fill? That could be your problem. On small blocks anyway, they have the fill on the same side as the pcv (both sides sometimes) and the pcv provides the pressure relief for that side. The other side has the vent hose running to the carb stack. If all you have on the passenger side is the oil fill with no breather, that could be the problem. I believe this is why earlier small blocks had the oil fill through the intake since there was no pcv valve on the cover. And of course, I could be completely off base here but that is my best guess.

Jason

12-24-2003, 12:45 AM	#10
J.Lance Too many is never enough! Join Date: May 2003 Location: Idaho Falls, ID Posts: 455	breather Do you have a breather on the same side as the oil fill? That could be your problem. On small blocks anyway, they have the fill on the same side as the pcv (both sides sometimes) and the pcv provides the pressure relief for that side. The other side has the vent hose running to the carb stack. If all you have on the passenger side is the oil fill with no breather, that could be the problem. I believe this is why earlier small blocks had the oil fill through the intake since there was no pcv valve on the cover. And of course, I could be completely off base here but that is my best guess. Jason __________________ Jason 1968 K10 SWB Fleetside 1971 K2500 GMC LWB 1968 K20 (later frame, donor body) 1972 C20 LWB parts truck 1993 K2500 Suburban, tow rig, 454, 4L80E NEW!! 18' Siem's car hauler 2004 Honda Odyssey (family man!)