SBC VALVE COVERS WITH EXTRA HOLES

dickeymoore

G-Body Guru
May 6, 2009
566
28
Atlanta,Georgia
I have a pair of GM PERFORMANCE tall aluminum sbc valve covers that has 2 smaller holes in them,one per side that i need to plug off any way to plug them off?Thanks
 

abbey castro

Greasemonkey
Oct 31, 2015
154
43
Harker Hts TX
Where are the holes on the side front/back or top? If they are on top they are the valve cover to air cleaner vent hose and one for PVC Valve. They are vents for the engine to breath internally. If you want to plug them then expect to get oil vapor leaks .
 
  • Agree
Reactions: ssn696

dickeymoore

G-Body Guru
Thread starter
May 6, 2009
566
28
Atlanta,Georgia
There are four holes all together on the top 2 holes on each side, one hole on one side is for the pvc and one on the other side is for the breather
 
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