TwinTurbo.NET: Nissan 300ZX forum - My ARP intake valve cover bolt kit eliminates the washers.
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Subject My ARP intake valve cover bolt kit eliminates the washers.
     
Posted by LitlElvis on November 20, 2011 at 9:52 AM
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In Reply To Valve cover crush washers posted by cherryz on November 18, 2011 at 08:29 PM
     
Message The stock setup relies upon the bolts bottoming out in their holes while the rubber crush washers provide the additional "push" on the gasket to seal it.

My ARP kit utilizes stainless shim/spacers between the head and the valve cover which allows torquing everything together rigidly. The spacers set the ideal height between the valve cover and head for the gasket to seal and prevent it from being crushed. The only caveat is the spacers are small and need to be placed with the utmost care... pretty easy though, I haven't lost one yet.

     
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