What are the fuel injection options for this engine? I seen a TBI kit from Holley, Has anybody converted their 351m/400 to FI? was it easy?

 

Aftermarket is the only option. Holley & Howell both make TBI type kits which fit on basically any V8 with a 4V manifold. Dan Lee, another member of this forum is building a homegrown version for his truck. I don't think he'd classify it as easy.

 

a 351W EFI intake can be adapted to an M/400 with intake spacers, then the rest of the system has to be swapped into the vehicle. there's a little matter of getting the right distributor parts together but it's do-able. it wouldn't be the first, or second time it's been done. there was a pic on Brian S's yahoo site, it might still be up?

 

lots of EFI info here, danlee is all over it. i was loooking for an article on a Pantera in Sweden? with the W intake conversion on it but i can't find it?

http://autos.groups.yahoo.com/group/...1Boss351HO400/

 

Why would you ruin a perfectly simple carbed 400 with EFI?

Better gas mileage: What's your payoff date for that $2500 investment?
Better throttle responce: Than a 400 sucking air through a little 2v carb? Not likely.
More power: 600cfm carb swapmeet $75, performer intake ebay $70, performer ripoff cam & lifters ebay $100, distributor recurve kit summit $5, headers ebay $65. Total: 385TQ, 275HP, $315.
Dude, I fuel injected my truck factor: Ok. With the extra $2200 I re-geared it, put in a locker, put in a shift kit, got some sticky tires, had money to spare, and can still beat you at a drag strip.

I guess if your just dying for a challenge and have money to burn why not. Otherwise it looks like a bad deal.

 

"i was loooking for an article on a Pantera in Sweden? with the W intake conversion on it but i can't find it?"

This one?
351C EFI conversion, Pantera
http://www.detomaso.nu/~thomast/efi/

 

thanks Brian, that's the one! he did a great job of documenting his project, with his article as a guide i don't see how it could cost $2500? and if he got it into a Pantera it should sure fit into a Ford truck easy enough? any reason why not?

 

The cheapest aftermarket systems are $2500. I'm guessing that most people will go for a slight performance increase so the cost of individual aftermarket parts and factory parts is likely about the same. Email the pantera guy. Let us know how much it cost him.

 

it cost him a ton of US $$$ because he's way over there by where he is, like he says in the article. those parts go to the wrecker every day 'round these parts and don't need to be shipped international with taxes and fees all over them three times. don't get me wrong, i love the good old days of stomping the gas pedal twice to prime and set the choke. i'd rather diagnose and replace a choke pull-off than an idle motor, MAF, PRNDL switch or a crank position sensor any day. you can keep all that tech crap as far as i'm concerned, but some guys like to use it.

 

I think you could do it easily for under $1000 using stock parts, which should run fine on a stock or mild 351M.

AP-34 Intake Adapter Plate
351M/400M Block, 351 Cleveland 2V or 351M Heads, 351W Intake
http://www.pricemotorsport.com/

 

There is another choice for intake options. There is something that I saw recently on a Cobra replica at a car show. He had a Windsor motor with a 4 barrel carb intake. On the intake was a GM TB and MAF. On top of that was a carb air cleaner. He also had a box to convert GM TPS/MAF to EEC-IV. He had an EEC-IV and Mustang harness.

This was some kind of kit. I have been looking for it, but haven't found a source. I am too far along with my project to change direction anyway. This looked like a simple solution to the manifold problem. You would still need fuel rails/injector bungs and a single plane intake.

However, there is another solution to the fuel rail problem. There are screw-in bungs, and 'hats' for the injectors. You supply fuel to the injectors from a fuel block, through high pressure hose into the 'hats'. This allows the use of a dual plane intake, since the injectors don't need to be at the same level.

Another 'trick' solution is to use a 351C-2V intake, and use adapter plates. The adapter plates should be thick enough to allow machining of injector ports, or simply drilling and tapping for the screw-in bungs.

My project cost under $1000.00, if you take out the cost of the expensive CHI intake manifold and the Tweecer, which I have yet to buy. I will have $1000.00+ tied up in those.

 

I believe that this is the EFI system that I saw on the Cobra.

http://www.mass-floefi.com/MF351C.html

That is a Windsor intake in the photo.

He told me it was a GM throttle body, I think that the TPS and MAF are GM, then they convert the signals to EEC compatible.

To use this with a 351M/400 you would need adapter plates.

 

I am looking to fuel inject my 351M /400. A while ago there was a guy on FTE that went by 79scheafer or something like that. He used the holley pro-jection kits and edelbrock intake and cam and was getting better milleage than my '99 v6 and he had big swampers on his. At todays gas prices the FI kit I think is well worth it, and yes it does improve almost every aspect of the engines performance (maybe not a lot but it doesnt degrade anything either). The newer holley tbi kits are like $1400 and include almost everything. So far the only other major piece you really need to add is a electronic distributer wich can be found out of a junkyard 460 motor that has FI, if I remember correctly.

I think for a dialy driver vehicle the FI makes more sense. Plus it would prevent the problem I have had in the past from my carb stalling due to the truck being at too much an angle. For a weekend warrior or a cheap rig than sticking to carb would be best.