New valve cover question
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From: Everywhere, USA
New valve cover question
I am in the process of completing a new 390. I have new custom valve covers and and a new air cleaner. My dad brought up the fact that the old engine had the hose running from one of the covers to the cleaner for crank case pressure. I can't run that hose now due to the new parts. Is this something I need to consider or will it be fine without it? The engine has a rv cam and Edelbrock Performer intake and carb.
I know this is probably a stupid question but this is my first rebuild and I want to be sure I do it right.
I know this is probably a stupid question but this is my first rebuild and I want to be sure I do it right.
Last edited by n001pa; May 28, 2006 at 12:35 AM.
Post Fiend
Joined: Mar 2004
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From: Union, Washington
You can just run a regular breather on the valve cover away from the PCV valve (you have to run an inlet for the PVC systemand you need to run a PVC system). I actually cut a hole in the bottom of my chrome air cleaner and mounted the hose there on my 1968 F250's 390 I built. Worked fine, but the breather works too.
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From: Everywhere, USA
Originally Posted by Bear 45/70
You can just run a regular breather on the valve cover away from the PCV valve (you have to run an inlet for the PVC systemand you need to run a PVC system). I actually cut a hole in the bottom of my chrome air cleaner and mounted the hose there on my 1968 F250's 390 I built. Worked fine, but the breather works too.
Lead Driver
Joined: Oct 2004
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From: Central Oregon
If your PVC system is hooked up, the hose from the other valve cover goes to the air clearer, most of the after market air cleaners had a way to hook a hose to them, if not you can make a nipple and attach one, if you can not attach one you can put a breather cap on the valve cover, but you will get some oil from this on you engine, the oil that would normally burn in the engine. You can run a hose from the cap to the back of the engine and down and out, but will not pass a smog test.
Post Fiend
Joined: Mar 2004
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From: Union, Washington
Originally Posted by n001pa
I need to get new breather caps for the valve covers. Are you saying that if I get get just the normal breather caps then I'll be ok? What do you mean about the PVC system?
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