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 Post subject: Milled my head today
PostPosted: Thu Sep 27, 2007 11:04 pm 
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EFI Slant 6

Joined: Thu Sep 14, 2006 7:54 pm
Posts: 347
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Image I ordered some oversize valves from ebay, bought a holley 4 barrel from a member , now I need an intake. Looking forward to building up an engine.

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 Post subject:
PostPosted: Fri Sep 28, 2007 7:34 pm 
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Joined: Thu Oct 17, 2002 7:27 pm
Posts: 14766
Location: Park Forest, Illinoisy
Car Model: 68 Valiant
How much you take off of it? :D

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 Post subject:
PostPosted: Fri Sep 28, 2007 9:09 pm 
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EFI Slant 6

Joined: Thu Sep 14, 2006 7:54 pm
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.100 thousandths. The pic is the before milling, I started, then had to hurry to finish before closing, so no time for another pic.

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 Post subject: Chamber Volume...
PostPosted: Sat Sep 29, 2007 7:20 am 
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Joined: Tue Oct 29, 2002 8:27 pm
Posts: 9714
Location: Salem, OR
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So how much is your chamber volume now? (In CC's)

-D.Idiot


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 Post subject:
PostPosted: Sat Sep 29, 2007 9:05 am 
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3 Deuce Weber
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Joined: Mon Sep 24, 2007 7:45 pm
Posts: 52
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Does it matter the finish you leave on it for gasket sealing purposes?


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 Post subject:
PostPosted: Sat Sep 29, 2007 10:16 am 
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EFI Slant 6

Joined: Thu Sep 14, 2006 7:54 pm
Posts: 347
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I still need to check the chamber volume. Its still at my work right now. I am going to milll the rocker arm shaft cradles down flat, make a new cradle/spacer for the rocker arm shaft thats .100 thick at the base so I can use the factory pushrods. The surface finish is nice and smooth, I have one spot that needs some touching up. I will post more pics next week. Should I cc the head with the factory valves? I have bigger valves to be installed.

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 Post subject:
PostPosted: Sat Sep 29, 2007 12:25 pm 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8977
Location: Silver Springs, Fl.
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Quote:
I am going to milll the rocker arm shaft cradles down flat, make a new cradle/spacer for the rocker arm shaft thats .100 thick at the base so I can use the factory pushrods. .
Are you sure you want to go to the trouble? Chances are it is not necessary (though it might be).
If you do make some stands, would you consider making an extra set, and what would you charge. I need a set to raise my rocker shaft higher to allow for longer valves. I was thinking of using a set of bolt on stands, like the W-2 heads. I could give you the dimensions I need.

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65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


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 Post subject:
PostPosted: Sat Sep 29, 2007 1:23 pm 
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Location: Park Forest, Illinoisy
Car Model: 68 Valiant
CC the head after you change valves. It will change your CC reading. :shock:

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 Post subject: head milling
PostPosted: Sat Sep 29, 2007 2:02 pm 
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Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1237
Location: CBS Newfoundland Canada
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unless it is something you always wanted, there is no need to move rocker shaft up the same distance you milled off the head surface, there is lot off adjustment on the rocker screws and it bring geometry closer to being right. i have milled .140in block/.080in head and it worked perfect :wink:


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 Post subject:
PostPosted: Sat Sep 29, 2007 3:26 pm 
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EFI Slant 6

Joined: Thu Sep 14, 2006 7:54 pm
Posts: 347
Car Model:
I will mill the rocker shaft pedestals, its at my shop right now, it will take the least amount of time. Its not something I have always wanted to do, if it saves me from having to purchase shortened pushrods then thats 100 bucks. I dont mind doing it. Charrlie how thick do you need the spacer/cradle to be? I will make mine 100 thou.

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 Post subject:
PostPosted: Sat Sep 29, 2007 5:38 pm 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8977
Location: Silver Springs, Fl.
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Quote:
Charrlie how thick do you need the spacer/cradle to be? I will make mine 100 thou.
I will have to figure that out. Will try to do it tomorrow (Sun). I had just done a mock up, to see hpw it looked, but have not taken measurements, yet.

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65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
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 Post subject:
PostPosted: Sat Sep 29, 2007 5:49 pm 
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EFI Slant 6

Joined: Thu Sep 14, 2006 7:54 pm
Posts: 347
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No hurry.

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PostPosted: Sat Sep 29, 2007 7:18 pm 
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Turbo Slant 6

Joined: Tue Jun 14, 2005 8:29 pm
Posts: 797
Location: Raleigh, NC
Car Model:
Icane,

I just finished a head with .100 cut off,. Coulda taken maybe a total of .140 off if I cared to, but my CR is about 9:1 now. With big valves from engnbldr the rocker arm still works fine stock. It is adustable, ya know..
rock
'64d100


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 Post subject:
PostPosted: Sat Sep 29, 2007 7:40 pm 
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EFI Slant 6

Joined: Thu Sep 14, 2006 7:54 pm
Posts: 347
Car Model:
I have heard of shorter pushrods being needed, with my luck I will rebuild the head, install it, and WHAMMO..... Russ should have installed the shims.

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 Post subject: rockers
PostPosted: Sun Sep 30, 2007 5:57 am 
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Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1237
Location: CBS Newfoundland Canada
Car Model:
i think it cool project to make rocker stands especial if you want longer valve but if you put in a larger cam the base circle is smaller in diameter so in most cases with head milling the stock push rod is the right lenght, just something to think about :)


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