Valve Spring Specs?, Stock

daves302gt · 08-18-2003

Hey,
I have a set of '95 cobra heads (GT-40) on my 94 GT and was wondering what the spring rate on the GT-40 heads was vs Stock. I know the cam had .040" more lift so i assume the springs were adjusted accordingly at the factory. What kind of a cam can i handle on these springs up to 5800 rpm? The spring specs are what i'm looking for, tho.

thanks!
Dave

Fordgazm · 08-24-2003

mustangs unlimited sells the gt-40 springs . check them out on the web

daves302gt · 08-25-2003

hey thanks, Fordgazm!
It looks like I will be able to run that cam,it's 300 #/in and at .512" lift it's only 10# down at 268# from the comp cams reccomended, and they only reccomend one spring for the whole lineup, up to 540 lift. I think i'm in the clear.

Fordgazm · 08-25-2003

Sounds good