I plan on using arp head bolts for a 400rwhp set up with a 150-200 shot of nitrous on top of that. Will the arp bolts work or should I use arp studs? Also does anyone know the part number for me to use?

 

Studs are always better, but for your application the bolts should be fine. I bought ARP part # 134-3601, SBC head bolt kit. Ran me like $55 or so.

I just didn't want to deal with studs with the limited room in the back of the engine bay, so I went with the bolts.

 

I've seen lots of threads where people had trouble sealing studs. Not sure why. I used the same ARP bolts as listed above.