part #'s for the ARP head studs are
Item No.......................................... Description
AU4.800-1LUB................................M12X4.80 U/C STUD1.5&1.25 BR
AUN12-2.......................................M12X1.25 12PT NUT STD COLLAR
AUW875........................................M12I D .875OD CHAMF WASHER
I found this info on probe talk http://forums.probetalk.com/showthread.php?t=1701173738
Enjoy
![Smile :)](./images/smilies/icon_smile.gif)
Edit: those are for the Probe GT but it's the 2.2L turbo, not the KL-DE
![Sad :(](./images/smilies/icon_sad.gif)