Off topic 400 M

I was in a discussion with a gentleman about the 400 M series engines. He said a friend has a 400 M that came out of a normal ford and had a 400 M with a four barrel carb on it. I said that that was not an option and ford never made a four barrel manifold for one of them. I know the aftermarket did and still might but over the years I was never able to locate a 400 with a factory four barrel.

Thier where a few made, very few

A 351M is a "modified" 400. (shorter stroke crank for less CID) That's why they call it a 351M/400. I don't think a 4 barrel came on either one of them.

If I'm wrong, please feel fee to correct me. You won't hurt my feelings.

cletus66 wrote:A 351M is a "modified" 400. (shorter stroke crank for less CID)    That's why they call it a 351M/400.  I don't think a 4 barrel came on either one of them.  

If I'm wrong, please feel fee to correct me.  You won't hurt my feelings.  

You are corrected

I have some pictures somewhere of a factor iron 4v intake for one

http://351cleveland.wikifoundry.com/page/Ford+400+4V

TommyK wrote:http://351cleveland.wikifoundry.com/page/Ford+400+4V

Holy crap!! Unicorns do exist !!

TommyK wrote:http://351cleveland.wikifoundry.com/page/Ford+400+4V

An "XE" part is not the same as a "Production" part.
One was made only for testing and marketing and the other was actually a part which was available on a normal production vehicle.

I have an "XE" cast iron 4 barrel intake manifold for a 300 cubic inch inline six. Ford had 8 of them made but, never sold one on a showroom truck.

rmcomprandy wrote:

TommyK wrote:http://351cleveland.wikifoundry.com/page/Ford+400+4V

An "XE" part is not the same as a "Production" part.
One was made only for testing and marketing and the other was actually a part which was available on a normal production vehicle.

I have an "XE" cast iron 4 barrel intake manifold for a 300 cubic inch inline six. Ford had 8 of them made but, never sold one on a showroom truck.

Rumor has it a few of these made it into some early wagons

cletus66 wrote:

TommyK wrote:http://351cleveland.wikifoundry.com/page/Ford+400+4V

Holy crap!!   Unicorns do exist !!  

Just the picture of a XE one on Google is about a Unicorn. Thanks

PS: The story I always heard is that they were tested and rejected for police car service.

rmcomprandy wrote:

TommyK wrote:http://351cleveland.wikifoundry.com/page/Ford+400+4V

An "XE" part is not the same as a "Production" part.
One was made only for testing and marketing and the other was actually a part which was available on a normal production vehicle.

I have an "XE" cast iron 4 barrel intake manifold for a 300 cubic inch inline six. Ford had 8 of them made but, never sold one on a showroom truck.

Wasn't trying to infer that a 400 4V manifold ever made it into production. Just trying to share evidence that at least one was made.

Over on the Cleveland forum, there was some discussion about this, and someone had posted a picture of a Police car with a 400-4V.
They also had a very rare 400 block with a small block bellhousing pattern.

cletus66 wrote:A 351M is a "modified" 400. (shorter stroke crank for less CID)    That's why they call it a 351M/400.  I don't think a 4 barrel came on either one of them.  

If I'm wrong, please feel fee to correct me.  You won't hurt my feelings.  

As I understand it the 351 m got the m to differentiate it from the 351w and c engines. Modified cleveland as in raised deck. Went from 9.206" to 10.298" if memory serves.

No need for an m after the 400.

I've seen the 4v intake pics but never actually put my grimy paws on one.


S

BBFTorino wrote:Over on the Cleveland forum, there was some discussion about this, and someone had posted a picture of a Police car with a 400-4V.
They also had a very rare 400 block with a small block bellhousing pattern.

I've seen a block with the small block pattern

dfree383 wrote:

BBFTorino wrote:Over on the Cleveland forum, there was some discussion about this, and someone had posted a picture of a Police car with a 400-4V.
They also had a very rare 400 block with a small block bellhousing pattern.

I've seen a block with the small block pattern

http://351cleveland.wikifoundry.com/page/Block+400+FMX+

A real production part this time.

The one picture on the wiki of the iron 4V intake shows a D7AE 9424  "potential"  part number. That would relate to a 77 full size Ford. All three parts shown are consecutive XE numbers designed ( probably) by the same engineer at the same time. There is a PF on the EGR plate indicating the prototype foundry at Ford in MI. The manifold has $86 which indicates it is the 86th "example" of that XE number. "XE" numbers were used on ANY new part design from fan belts  to flywheels and everything in between. It doesn't mean the part "worked" or is an "exotic" race part. But some are. Ignitions used XF numbers as did "some" carburetors.