For those who have installed headers on the 5.5 what have you used for fasteners ? For my 84 Z I know you can use a ARP kit meant for a small block chevy, but I know the size at some point has changed? I looked on several web sites and didn't see any listed for the maxima or a 350z . Thanks!

 

I used My Oem fasteners....... which are bigger than yours....Your can upgrade to bigger VQ studs or later improved OeM studs cause they're all metric.....on my 90 VG I used newly improved OEM stud and nuts.....Measure your stud size and use ARP generic hardware.....

 

Thanks for the info ! When I install the Cattmans I want to make sure I am using good hardware.