Paul26

i know that the intake manifold off of a 302 will not bolt on to a 351
i plan on installin a pair of gt-40p heads on my 351( please tell me if i will run in to any problems here i believer they should bolt on but im not positive) if i install these can i use a gt40 intake manifold off a 5.0 or do i still need the special one for the 351?

jtmustang

351 w needs a 351 w intake.

ponyboy88

(lower intake)

if you run efi, most 302 and 351 uppers are the same,.

jtmustang

^^^^^^^thats what i meant

dudeboy

I haven't used the GT40 heads, but it they were originally installed on a 302, then you will need to drill out the Head Bolt holes for the larger 351w diameter.

justhereforinfo

Is the lower intake on the 351w the same as the 331 lightning lower? Well I know the lower from the lightning has an intercooler built in it, and I know its not the same, but i mean are the bolt holes the same? My friend upgraded his lightning and doesnt need his stock stuff.

I'd like to use his lower intake and charger on a 351, since it wont fit my 302.

dudeboy

351w Lightning intake with a built in intercooler? That's new to me....????
I'm also not aware of a "331 lightning lower"


If your buddy has a 351w Lightning intake that you would like to use on a 351w, then it will fit.

uedlose

if you are talking of the newer lightnings with the mod motors NO they will not work on the 351s not even close