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· But what does mine say?
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I like the 383 stroker idea the most. With the cash that you save, you could buy new heads, and then raid the junkyard for everything else. I'd suggest looking for a beat up 351 lightning for the computer and stuff. Maybe you can find one that's been wrecked. That would even give you the benefits of MAF. As far as I know, 351 lightnings all had the E4OD trannies, so you should be safe.
 

· But what does mine say?
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916 Posts
I have GT-40P's on mine, but mine are cast iron. Unfortunately Summit Racing doesn't carry them anymore, but the part # is fms-m-6049-p303 incase you want to give them a call. You may be able to get them from Jegs or directly from Ford Motor Sports. They're half the price of the aluminum heads, and are better with temperature.
 

· But what does mine say?
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916 Posts
Fireguy50 said:
GT40P heads suck on big displacment engines. They are a nice cheap head for 5.0L, but not best on 5.8L or larger.

You better skip straight to the 89-93 Mustang computer with the stroker.
Lightning Trucks did not have Mass Air, the Lightning Mass Air kit is over $1000
I could sugest the ultimite laptop tunable Mass Air swap for around $800
My buddy has MAF on his Lightning. He is the only owner, and has never done a conversion. He says the truck came that way. He has rebuilt the motor, but other than changing his MAF meter and injectors, he hasn't touched the EFI stuff. I agree with 99% of what you tell me Fireguy, but I'm gonna have to disagree with you on this one. Just to be sure, I'm gonna dig into it and see what I can find.

And as for the heads...

Aren't they the heads that came on the 351 lightning from the factory? I only ask, because when searching for things such as spark plugs and headers, the guy at Summit told me to go with stock Lightning parts. He even suggested getting Lightning plug wires to ensure that they are long enough due to the angle of the plugs.

Sure there are better choices out there, but I was only suggesting these to save him some money. They're damn good heads IMO. Of course I'm running a 302.
 

· But what does mine say?
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916 Posts
This is what I have found so far. It doesn't say anything about MAF or not. Either way, the point I was getting at was that he could find all the bits and peices for his setup off of a 93-95 era Lightning, ie computer and wiring plus to pend components. Just lookin to save him some money.

94 lightning specs
95 stock lightning specs

One thing it does mention is that it was sequential. That would at least make for better fuel mileage and responsiveness if he were to use that harness and computer, weather it's MAF or not.
 

· But what does mine say?
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916 Posts
Well, I signed up to a SVT forums, and asked the question. I only got one response out of a handful, and the guy said that his 94 did not have MAF. This means my friend is telling me fish stories. Either way, his Lightning does have MAF, and having driven it I can say that it is awesome.

Now my question is this... If he were to use Mustang electronics and harness, wouldn't he have to have the computer reprogramed for the E4OD? Wouldn't it just be wiser to use the Lightning computer, electronics and harness, since it is already setup for E4OD? I assume that with the larger displacement, he is gonna need to reprogram anyway. But do you still suggest Mustang over Lightning, and is there a cost benefit? All this considering that he stays with Speed Density.

Sorry to thread jack.
 

· But what does mine say?
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916 Posts
Ok, so now another question. Since I already have the MAF conversion and it's installed, (rather than used parts) other than the larger injectors, meter, and performance chip (which are all just upgrades that I can do as well) what is the major differences and benefits to the system you have compared to the one I have? Granted, I may have paid to much, but the guess work was taken out, and it was so simple that a monkey could have installed it. It was as if I went into a store and picked the complete package off of a shelf.

Second, do you have a detailed description of how to run seperate computers on your site? I have heard talk of it before, but have never heard the how to's and benefits.

When I built this bronco, I still had my old one to pull parts from. This new one is AOD, and the old one was E4OD. I ultimately opted to keep the AOD tranny for two reasons. One was that it had been rebuilt recently. The other was that I already had the conversion, and all the info I could find specified that it was for AOD, and not E4OD. Needless to say, I may have weighed my options differently had I known how to do it. I still have the E4OD tranny. It is in need of a rebuild, but I may just use it in the future rather than sell it.

That being said, if he decides to stay with speed density, do you suggest he just pull the top end off of an 80's Fox body? (to include the harness and computer) What would be a particular model to stay away from? Would an Explorer be another option? (the GT-40 models of course, but weren't they MAF as well?)
 

· But what does mine say?
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916 Posts
Fireguy50 said:
All these questions and I'm not feeling my best :brownbag :cry :uke: :wacko

No differences, you just paid more, and got that injector add on harness.
But I heard a rumor of some guy on this site that will convert a truck Speed Density harness to Mass Air using a mustang computer for a very comparable price. :toothless
I'm assuming your kit was $550ish new? $125 for a used computer, $50 for a MAF sensor, then what ever "deal" you work out with that stanger ;)

No I don't have the details on my web site for piggy-backing computers.
Haven't sat down and sorted out the details yet. I could if there was a need. It's only time and money :(
You find the time or money to swap in that E4OD with the Mass Air, I could be persuaded to wire it up.

Can't stick with Speed Density, plan and simple. There is only 1 speed desnity computer than can be tuned with a chip to any usefull outcome. And it's not easy, and hates camshafts.
Not going to save any money with Speed Density in a stroker motor, all roads lead to 1989-93 Mustang Mass Air ;)
How much money and time you spend to learn that determins your EFI IQ :D

Intake is another storry, I sugest the edelbrock performer for a stroker, maybe even a Trickflow
I smell what you're stepping in, and I'll say this.... When I have the time and money and facilities to start/finish all of my plans for this bronco, I'll be looking for you urr... that stranger. :drinkbud

Oh yeah, I paid around $700 for my FMS kit from Summit. Yeah I may have gotten ripped off, but only in price. Quality is great, as I said in that artichle I sent you a while back. *cough!*cough!*:slap At that time though, I was still learning the basics of EEC, and when everything I read suggested that MAF was where I was heading, I spent the money with ease as soon as I had it. I don't regret it, but wish I'd have known then what I know now.
 
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