Afr head stud problem

Old 06-10-2011, 07:12 PM
  #1  
rhino058
Junior Member
APPRENTICE
Thread Starter
 
Join Date: Feb 2009
Posts: 19
Default Afr head stud problem

Im building a 406 sbc with afr heads with comp double valve spring the outside and inner most exhaust head stud bolt fit but its semi impossiable to get a socket on it ive milled down and grinded one to fit but it doesn't have the strength anymore i had to take so much out i know afr sells resized bolts for just those holes but wondering if anyone had an idea so i dont have to wait till mid next week to get the motor togther
rhino058 is offline  
Old 06-10-2011, 10:32 PM
  #2  
zipper06
Senior Member
RACING JUNKIE
 
Join Date: Jan 2006
Location: La.
Posts: 2,890
Default

Crowfoot wrench works, however the torque value changes some. i seen it done many times.

JMO

Zip.
zipper06 is offline  
Old 06-11-2011, 02:23 AM
  #3  
fla1976
Senior Member
RACING JUNKIE
 
fla1976's Avatar
 
Join Date: Aug 2007
Posts: 1,523
Default

Here is a site to calculate the torque difference Zip talked about. There is an explanation and calculator.

http://www.engineersedge.com/manufac...e_wrench_1.htm
fla1976 is offline  
Old 06-11-2011, 05:44 AM
  #4  
rhino058
Junior Member
APPRENTICE
Thread Starter
 
Join Date: Feb 2009
Posts: 19
Default

I tried a set of crowfooted and they don't solve problem the nut had to drop down into a sleeve almost i'm thinking of just running down to a fastenal store and see what if they have a nut with small diameter but same thread
rhino058 is offline  
Old 06-11-2011, 08:09 AM
  #5  
TheYellaBrick
Senior Member
RACING JUNKIE
 
TheYellaBrick's Avatar
 
Join Date: Mar 2008
Location: Emmett, Idaho
Posts: 7,334
Default

GREAT website and info !! Thanks from ME !

---------
TheYellaBrick is offline  
Old 06-11-2011, 08:10 AM
  #6  
TheYellaBrick
Senior Member
RACING JUNKIE
 
TheYellaBrick's Avatar
 
Join Date: Mar 2008
Location: Emmett, Idaho
Posts: 7,334
Default

Originally Posted by rhino058
I tried a set of crowfooted and they don't solve problem the nut had to drop down into a sleeve almost i'm thinking of just running down to a fastenal store and see what if they have a nut with small diameter but same thread
For sure get a grade 8 !!
TheYellaBrick is offline  
Old 06-11-2011, 03:15 PM
  #7  
cncmotorsports
Senior Member
MASTER BUILDER
 
Join Date: Apr 2003
Location: Brookings South Dakota
Posts: 244
Default

Yup, that's always a problem. We use a smaller Arp 12pt nut for the center studs. I'm not sure if fastenal will have anything
cncmotorsports is offline  
Old 06-12-2011, 01:57 PM
  #8  
rhino058
Junior Member
APPRENTICE
Thread Starter
 
Join Date: Feb 2009
Posts: 19
Default

Has anyone ordered the "Abbrivated" nut that afr sells on there site i just want to make sure someone else has tried them before i was going to cal afr monday am but im on the east coast and they're based out of california just be easy to know if they worked for anyone else
rhino058 is offline  
Old 06-12-2011, 03:19 PM
  #9  
fla1976
Senior Member
RACING JUNKIE
 
fla1976's Avatar
 
Join Date: Aug 2007
Posts: 1,523
Default

I have used the 12 points from ARP. Don't see that there would be any difference. Definitely has a smaller footprint.
fla1976 is offline  
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -