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Old 12-28-2017, 07:39 PM   #1
Begle1
 
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Pictures of 12 valve milled rocker pedestals for stud clearance

Does anybody have pictures of milled rocker pedestals?

I was under the impression that the amount of material that may need to be removed measured in the thousandths... But here I am trying to get 250 thousandths milled off and wondering if I'm doing something wrong.
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Old 12-28-2017, 07:46 PM   #2
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I'm confused. Are you wondering if you need to remove .250" or if the tolerance requires you to measure it in thousandths?
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Old 12-28-2017, 08:12 PM   #3
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I spent a lot of time looking at it today, and to install my head with my A1 studs, using the washers, with a standard-thickness head gasket and without clearancing my valve covers, I need to mill about .24 of an inch from under the head nut. And it's the nut that is hitting the covers, not the stud.

Yet somehow I see all these references of people milling .020" off. Like is that an inside joke, or are they just doing that in addition to clearancing the valve covers or what? Because for these things to fit I'm trying to get over ten times that much milled off.
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Old 12-29-2017, 07:50 AM   #4
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The arp 2000s require .200". Arp instructions in the link, is a blue link pdf on the page.

The Official ARP Web Site | Kits
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Old 12-29-2017, 08:01 AM   #5
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Quote:
Originally Posted by jlbayes View Post
The arp 2000s require .200". Arp instructions in the link, is a blue link pdf on the page.

The Official ARP Web Site | Kits
Image.

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Old 12-29-2017, 08:19 AM   #6
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You can also pludge cut them for the washer o.d. .200 deep..
 
Old 12-29-2017, 10:21 AM   #7
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Pictures of 12 valve milled rocker pedestals for stud clearance

Quote:
Originally Posted by Begle1 View Post
I spent a lot of time looking at it today, and to install my head with my A1 studs, using the washers, with a standard-thickness head gasket and without clearancing my valve covers, I need to mill about .24 of an inch from under the head nut. And it's the nut that is hitting the covers, not the stud.

Yet somehow I see all these references of people milling .020" off. Like is that an inside joke, or are they just doing that in addition to clearancing the valve covers or what? Because for these things to fit I'm trying to get over ten times that much milled off.


The stud even when bottom tapped will hit the valve cover. Regardless of nut. The valve covers have to be clearanced. I have never seen a set of A1 studs that don't do exactly this
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Last edited by 97rada; 12-29-2017 at 10:23 AM.
 
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