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Discussion Starter #1
like the title say's i have my engine started for the first time and and after about the 6th time i have a noise now i can't isolate plus its hard with strait headers ?
 

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like the title say's i have my engine started for the first time and and after about the 6th time i have a noise now i can't isolate plus its hard with strait headers ?
I think it depends a lot on the rockers and the valve cover gasket. I am using a Lunati 61604 cam which is VERY close to your cam (564/582 lift, 233/241 @ .050") with PRW stainless steel roller rockers and stock valve covers with no problems...
 

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Rocker clearance

I have the Cam Research copy of that exact same cam in my 466 with Aluminum Edel heads and the MPG/Cam Research aluminum roller rockers with factory valve covers and have no rocker to valve cover issues. I do use a rubber Felpro valve cover gasket. An old trick is to glue two sets of gaskets together to gain some clearance.

FWIW Mark
 

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I have the Cam Research copy of that exact same cam in my 466 with Aluminum Edel heads and the MPG/Cam Research aluminum roller rockers with factory valve covers and have no rocker to valve cover issues. I do use a rubber Felpro valve cover gasket. An old trick is to glue two sets of gaskets together to gain some clearance.

FWIW Mark
i'm using the rubber felpro gaskets as well, i don't think that its the rockers i'm hearing ? i was just wondering. its a weird noise that i'm hearing. maybe its the header clack ?
 

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Both my 460 and my brothers 351c have roller rockers. They both have a bit of chatter from bouncing off the guides I think.

Also I was concerned about the stock valve covers clearence so I just did this

 

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Discussion Starter #7
Why not pull the valve covers and see if they have been rubbing... or install some mufflers?

Tom
well i don't think it's the rockers and exhaust is coming next !
 

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Discussion Starter #9
For the cost of a set of vc gaskets, it would be worth knowing, and not ruining a cam if they are hitting the covers.
Tom
yeah, i think i will pull them off and check for marks just in case.
 
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