[73guna]

If anyone is using these could you measure the width of the nut at the widest point. I assume they have a flange on them.

My valve covers might not take these as space around the hole is limited.
Thanks

 

[69bowty]

If you go with the hex nuts you will probably have trouble getting the socket in there. If you go with 12-point nuts I think the od on the nuts is 3/8" and with a 1/4 drive socket it should fit anywhere the nut does. HTH.

 

[CDN SS]

I use the ARP studs with the 12 pt nuts .no problem on GM cast alum BB valve covers .use SnapOn 5/16th 12 pt deep socket 3/8 drive FWIW

 

[BillsCamino]

I use the ARP studs with the 12 pt nuts .no problem on GM cast alum BB valve covers .use SnapOn 5/16th 12 pt deep socket 3/8 drive FWIW

Same setup here...on fabricated aluminum covers. :thumbsup: