yeah theres a 4v head but no factory 4v heads on a 400 and there is not an aftermarket 4v 400 intake but there are ones to bolt a 4 barrel carb to 2v heads.

 

just to really confuse you

Ford 335 "Cleveland" Series Engine Forum: More pix of 400 4V intake

 

what are you going to do with the spacers? if you intend to sell...let me now.

 

i do intend to sell... pm me. i got a performer polished intake for sale too.

 

Does anyone have flow bench data in here between the 2v & 4v heads? Hmmmmm, I wish I had a flwo bench right now.

 

yeah... here's a huge page full of flow #'s...

Stan Weiss' - Cylinder Head Flow Data at 28 Inches of Water

 

I totally forgot about Mr Weiss' page there. I even have it under my favorites, just didn't remember it was there. Thanks boss.

 

how much do you want for that performer intake you have for sale?

 

That "link" picture appears to me to be a 4bbl carb pattern on an OEM appearing intake for 2bbl heads. There may be some confusion about what the 4 and 2 barrel heads mean.

It is not the same as the carb pattern on the intake manifold. I have all 3 sets of heads, 4BBL/2BBL/351M-400. While they all will bolt up the same, there are differences in them with valve sizes, ports etc.

The 351M-400 heads are very close to the 2bbl cleveland, but there is a water jacket in the exaust port, just downwind of the valve guide. Very much grinding there and you can have your very own "creek" (for you northerners, "crick') . It is very much the same as they did with the GT40P heads for the W blocks, as opposed to the Std GT40 or W heads. The "P's" have the same style water jacket.

 

from the left; 4V, 2V including 351M/400 and Australian
302C/351C, Windsor



the ultra-rare 400-4V intake has the small 2V sized ports



Australian produced 302C/351C 4V engines used intakes with small 2V sized porting also

 

Ya know GRC, these pics remind me of one of my first screw-ups on a 460 with the ford spreadbore pattern (a 4350). I think it may be confusing to some newbies as well. The ford spreadbore pattern (shown in the pics) is not the same as the GM spreadbore pattern (ie rochester QJ). As heavy as that 400 intake has to be, I would definately "chunk" it and get an alum edel/weiand and a carb of either sq or spread pattern. It isnt like that 400 intake will ever be a collectors item! Besides, all the effort you are going to spend to get that 4300/4350 to work right will pay for the new manifold.

 

good point about the Ford spreadbore pattern, the primaries are the same as a Holley square pattern while the Rochester/Carter pattern has smaller primaries and farther apart
(note that the Aussie 4V intake intake in the bottom pic uses the Rochester/Carter pattern. they also made squarebore intakes as well)

you'd chuck a 400-4V intake? if i had one, if i could find one, if i could afford the asking price... i'd have it gold plated and hang it on the wall!

it's not a production part, it's covered in hand stamped numbers and carries an 'XE' part number, here's a link to the Cleveland WIKI article,
http://351cleveland.wetpaint.com/page/Ford+400+4V

and original posts by the guy that found it,
http://www.network54.com/Forum/11941...+Intake+Update
http://www.network54.com/Forum/11941.../400+4V+intake

 

Yea, you are right about the "XE" casting, guess I would find a good place out back in the tall grass to keep it!!

Going on memory here since I havnt looked at a Ford spreadbore in a while and I am too lazy to go round up the one that came on the 70 351C, but I think the GM spreadbore pattern has the primaries in line with the secondaries, but much smaller. The Ford pattern has the primaries, not inline, but slightly more in --toward the centerline of the pattern. Given that, it appears that the pictured "XE" manifold has the Ford pattern. Whatta you think? Now if I could only find that FMX block---- to mate with my C heads for my Mach with a 4R70W and a controller (or ecm). I can dream---cant I?

 

I wish someone would make a reproduction of that cast 4bbl intake manifold. It would be a nitch market for sure but for most of us stock class truck pullers we arnt alowed to run alluminum intake manifolds. Really hurts the ability to pull with the other guys. A 400 can pull right with those 454 and 460 guys in the stock class and even outpull them to. But having to run a 2bbl really handy caps you.