351W cylinder head fitment.

[quinny285]

I'm looking at purchasing a set of 351W heads to put on my 94 gt. I'm getting them cheap from a friend. I just want to make sure they will fit and if they will, will I need a different set of headers other then my short tube MAC's? I will also be runing a victor jr. intake. Thanks for the input Steve

 

[sn-95matt5-0]

i'm pretty sure the head bolt holes are bigger on the 351w heads but other than that i think the fitment is the same

have no idea about the headers though

 

[BlownFiveLiter]

As long as they're a standard port location, your current headers will be fine. Otherwise, there's really no difference in a 302 head vs. a 351, except that the 351 uses 1/2" head bolts, so you'll need bushings (Edelbrock makes some) to fit the 7/16" bolts for the 302.

 

[parchisi]

You can get some bushings that will allow you to use 3/8" bolts with the 351 heads, which are designed for 1/2" bolts. Other than that, 351 and 302 heads are pretty much the same, so you can use regular 302 headers too.

 

[quinny285]

Will the 351 heads flow better then my GT-40P 302 heads?

 

[BlownFiveLiter]

Depends what casting they are. You gotta remember that Ford used the E7TE (same as our stock heads) in the 351 trucks/vans with no difference other than different springs and larger head bolt holes, so they could very well be worse than what you're running already.

 

[ProKiller]

get some numbers off them. also, i would get ARP head studs. They should come with the bushings and will be better in the long run anyway.