ARP Stud size

[Lightning1]

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]

M12 x 1.25 IIRC. Definately M12, just not sure on the thread pitch.

Wiz

 

[jmorri15]

pretty much everything on the car is 1.25 pitch

 

[Galantvr41062]

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