Size of the breather holes on the valve covers?
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Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Size of the breather holes on the valve covers?
I would go out and measure but my car is a few miles away. Are the holes the standard 1.25 on the center-bolt valve covers?
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Joined: Oct 2001
Posts: 1,712
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From: Midwest City, Oklahoma
Car: '87 Z
Engine: 355 in the works
Transmission: 700R4
Can you use a breather instead of an oil cap? I was wondering cause I saw a pic of a breather in the place of where my oil cap is... but it may have just been a different model with the oil cap on the other side. I mean, it's not pressurized in the valve covers, right? So I could just use a breather instead of an oil cap theoretically right?
Thread Starter
Supreme Member
Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Its 1" I found an old PCV valve laying around my house and measured it.
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Joined: Jan 2000
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From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
Putting the breather on the same side as the PVC would be defeating the purpose. I'm pretty sure you can only put the breathe ron teh side without a PVC
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