Post by
grubby27777 »
https://forums.nicoclub.com/grubby27777-u57594.html
Tue Apr 08, 2008 5:55 pm
i was also lookin at them and because of there extensive experience in f1 i think that speaks for itself, now afew more head questions, i was looking into 1mm bigger valves, would this be compatibale with the stock valve spring and retainers and keepers or would i have to upgrade those too?? and then with the Headgasket, is the stock bore size 87mm, and what is stock thickness?? i would like to keep my stock compression ratio, unless anyone has any other opinions on that