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ARP Stud size

Lightning1

Well-known member
Joined
May 12, 2010
Messages
67
Location
IL
Hello,

I was wondering if anyone knew the stud size as well as the thread pitch of the ARP head studs for our engines?

Thanks,

Jeff
 

Wizardawd

Well-known member
Joined
Aug 7, 2007
Messages
1,323
Location
Franklin, NC
M12 x 1.25 IIRC. Definately M12, just not sure on the thread pitch.

Wiz
 

jmorri15

Well-known member
Joined
Jul 11, 2009
Messages
171
Location
Kemp, TX
pretty much everything on the car is 1.25 pitch
 

Galantvr41062

Well-known member
Joined
Aug 20, 2007
Messages
410
Location
plymouth, MN
M12 x 1.25 going into the block. I am not sure if the top of the stud and nut are m12 x1.25, I am pretty sure they are.

And not everything is 1.25, there is M6 x1.0 m10 x 1.5, m12x 1.75, etc and most of the seat belt bolts are standard.

~John
 
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