I've tried the search to no avail, so can someone educate me on this? I need to call ARP tomorrow and order a set of head studs. I believe what I need is studs for an H22 engine, but I need one extra because one of the H22 studs is too long. What part number is the extra stud?

 

I know people are using the H23, but I believe the H22/h23 studs are the same. The extra stud that you need is just one more of the standard h22/23 studs. Let me know how it goes, I may be getting a set over the winter!

 

Thanks Tinker. I finally found the post on these studs here: https://www.s2ki.com/forums/index.php?showtopic=325702

Found it by going page to page under FI. I can't believe the search engine kept coming up empty. That post needs to be added to the frequently asked questions under FI.

 

I keep hearing that members are using H22 studs. I am confused, because I ordered some ARP head studs for my S2000 and had them installed. I was told they are made for a S2000 and fit perfect. Feel free to call the shop, Midnight Performance- (916) 852-6887, Sacramento, CA.

 

I'm just going to use the stock bolts with the 2mm gasket. There is a forum going around here somewhere about the H22 and 23 studs having problems.

 

I just called ARP and ordered head studs. Their current catalog, which was published in late 2004 does not list head studs for the S2000. The sales person who I spoke with was aware of what I needed - H23A stud set plus one additional short H23A stud. The part numbers are:

H23A head stud set - part number 208-4307
One extra short H23A stud - part number AU7.250-1LUB

When they print the new catalog they may have a part number for the S2000.