Afr head stud problem

[rhino058]

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

[zipper06]

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

JMO

Zip.

[fla1976]

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

http://www.engineersedge.com/manufacturing_spec/torque_wrench_1.htm

[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

[TheYellaBrick]

GREAT website and info !! Thanks from ME ! :D

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[TheYellaBrick]

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 !!

[cncmotorsports]

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

[rhino058]

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

[fla1976]

I have used the 12 points from ARP. Don't see that there would be any difference. Definitely has a smaller footprint.