EVO All Evo Model Discussion

Rocker boxes

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Old Apr 24, 2017 | 08:45 PM
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Default Rocker boxes

If you have a set of non chrome stock breather rocker boxes you are just storing and would like to let them go, PM me.

Also I need a lesson on the breather heads. What does the flapper do? I get its a sort of check valve. Can use non breather rocker boxes on my 98? Any modifications?
 
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Old Apr 24, 2017 | 09:09 PM
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Originally Posted by jammerx
If you have a set of non chrome stock breather rocker boxes you are just storing and would like to let them go, PM me.

Also I need a lesson on the breather heads. What does the flapper do? I get its a sort of check valve. Can use non breather rocker boxes on my 98? Any modifications?
You need rocker boxes from something made in '92 or newer.
 
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Old Apr 25, 2017 | 04:52 AM
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I've come across references to using both top and bottom breathers on tuned engines at the same time.
 
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Old Apr 25, 2017 | 07:30 AM
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Sent you a PM

WP
 
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