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05-27-2006, 09:24 PM   #1 (permalink)
dsfordguy
 
Join Date: May 2006
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How much to make 351c 4v heads accept adjustable rockers?

Just asking for a rough estimate of what its going to cost to get my cleveland 4v closed chambered heads machined to accept screw-in studs for adjustable roller rockers.
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05-28-2006, 09:39 AM   #2 (permalink)
ou812
 
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How much to make 351c 4v heads accept adjustable rockers?

Should be around $60.00 a head to mill and tap the holes.
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05-28-2006, 05:27 PM   #3 (permalink)
dsfordguy
 
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How much to make 351c 4v heads accept adjustable rockers?

That's way cheaper than i thought.

How much needs to be milled off?
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05-28-2006, 08:21 PM   #4 (permalink)
ou812
 
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How much to make 351c 4v heads accept adjustable rockers?

usually the thickness of the hex on the stud and the thickness of the plate...some are thicker than others.
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05-28-2006, 09:13 PM   #5 (permalink)
dsfordguy
 
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How much to make 351c 4v heads accept adjustable rockers?

So it's not much material that is removed?
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05-29-2006, 11:21 AM   #6 (permalink)
ou812
 
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How much to make 351c 4v heads accept adjustable rockers?

It's around 3/8 to 7/16 of an inch.

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05-29-2006, 11:25 AM   #7 (permalink)
dsfordguy
 
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How much to make 351c 4v heads accept adjustable rockers?

is that 3/8 to 7/16 of an inch including the two rails on the sides used for the pedestal mount rockers or is it 3/8 to 7/16 of an inch after removing those rails?

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<font size=-1>[ This Message was edited by: dsfordguy on 5/30/06 2:25am ]</font>
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05-29-2006, 08:27 PM   #8 (permalink)
ou812
 
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How much to make 351c 4v heads accept adjustable rockers?

Without having a head in front of me I'm not totally sure...but I believe it's after the rails have been milled. Dont hold me to that though...
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06-01-2006, 11:51 PM   #9 (permalink)
dsfordguy
 
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How much to make 351c 4v heads accept adjustable rockers?

been researching on what needs to be machined on the heads. After milling the rails you take it another 0.300" down. Does this sound about right ou812?
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06-02-2006, 06:50 AM   #10 (permalink)
ou812
 
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How much to make 351c 4v heads accept adjustable rockers?

Yes it is about right. Been a while since I did this but it's around 3/8 I believe...but that might be from the very top so .300 sounds like it.
Brian
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