I have a 93 F150 2 wheel drive with the 302. The motor thats in it is out of an 86 but it has the 93 intake and injectors. I'm looking for more power, more speed, more get up it just seems slow compared to other vehicles i have drove and i want to fix that. I havent decided if i would rather just build up the motor thats currently in the truck or completely rebuild the original 93 302. Anyways my question is what would be the best way to build this motor up on a budget. I dont have a set price but i'm just saying i dont want to go out and spend thousands of dollars. Someone told me since this truck has the EFI injection system but doesnt have MAF sensor you cant change the cam because the lack of the MAF sensor will make it run like crap, is this true or can i change the cam out without any problems?
As far as headers go, are there any out there that would bolt right up to the stock exhaust system? As far as heads go i was reading an article about building a 400hp 302 and they used some air flow heads that gave the motor 100 more hp. They are going for about 770 on summit. Any other cheaper heads out there that will help me get this motor to do what i want it to do? Parts suggestions on this would be great.

 

Well to start with , you wont be able to get 400HP out of a NA 302 for a few thousand , so depends on what you want to spend , the 93 should be a roller motor so thats the motor i would build , you could use somrthing like the HO mustang cam , and a set of GT -40 heads and not need to swich to MAF , this would be a cheap build , but if you have the money you can get just about anything you wan't out of it ....Lew

 

I'm not trying to get 400HP I was just using that article for an example. I'm really just looking to get some more out of the motor then what it has now because its just not enough for my liking. I'm sure I would be happy with even another 100HP. How much does the HO mustand cam and GT 40 heads run? and how much gain would I probably get out of them?

 

I'm not sure how much power over stock those mods would get you, but I don't think they will even get you to 300hp.. So if you were to put a number on it, how much power would be more your liking? We can get you anywhere you want to be. Maybe the HO cam, GT40 heads, and toss a supercharger on there. LoL

 

In a 93 if it is for sure a roller motor (if it doesn't have mass air is it then not a roller???) If it is then the maf conversion would be very simple, the mustang cam I wouldn't go with in a truck, more so built for top end power and not the low end torque you need to move a truck. Gt40 heads are a great head but I got pro comp heads off ebay, $750 shipped to canada, great design and lots of power. For the cam I would find something with a low power range, I got comp cam extreme 4x4 which has a power range from 1000 - 5300 rpm. Moves the truck great. But since in the 90 cab the maf conversion seemed to be a nightmare with figuring out the wires from the cab to put them into the maf ecu was more wiring then what I wanted to do I am now in the process of going with carb as for headers before I had stock mustang shorties, they bolted to the stock y pipe with very little modification. If you are interested in maf swap I'd go that way, but might need to ask for guys help, if your engine is not a roller engine it'll have a different firing order than the roller, can you just use the distributor you got? That I'm not too sure of. Hope I was a help!

 

As far as a number for a horsepower rating i'm looking for, there isnt one. I'm just looking to get a little more out of the motor then what it has now. Nowing crazy, just something a bit more then what it has now. Would just throwing a cam in there make a noticable difference while driving as far as power goes? Would it be ok to just swap out the cam without swapping the heads? I'm really just bored with the power it has now and want a bit more. I'm not to familiar with building motors but I love to get my hands dirty and do the work and am wanting to learn so i thought this might be a good start.

Does the 93 and 86 motors have a different firing order? Can anyone clarify that? I'm using the firing order that the 93 had. But i'm also still using the injectors, intake, distributor, computer all from the 93.

 

If it does not have maf it is not a roller block, so yours and the 86 is the same, you can do a cam swap and will notice a bit of a difference, not as much with the maf of course but will. With stock heads I believe you can go up to 0.5 lift, honestly the extreme 4x4 one I got was a great deal, lifters, timing chain and cam for $200, I bought it before I got the heads so it would work on the stock heads. But in a truck if you just look for a power range around idle - 1000 to 5300 rpm or so you will notice it for sure

 

But when ordering the cam be sure to be careful what you are ordering, most after market cams for sbf will be the roller and 351 firing order

 

I say buildup the '93 motor since it's a roller motor and has better heads than the '86. More power isn't problem just use a cam that is compatable with the EFI system and there are several that work well including the comp cams 35-512-8. Forget about using any of the stock exhaust parts if you want power, longtubes are best but shorties are good too with an aftermarkeet Y pipe.

 

Not true at all, all truck motors were roller from '92 on, '92-93 had a cam with the old firing order while '94 on had one with the HO firing order.

 

And it dosn't need to be MA to be a roller ...Lew

 

Use the93 motor, build it on the stand. Use a ford motorsport e cam and find a cobra intake or gt-40 intake. Running the stock 19lb injectors is okay. When you have the motor all freshened up on the stand, simple motor swap. Should be good for about 60-75 hp.

 

The E-cam isn't SD compatable but even if it was it'll produce a lot more the 60-75hp over stock assuming a full exhaust is also added.

 

Is the cobra intake not for more high end power than low end torque? The stock truck intake has bigger D shaped ports than the cobra, I would stick with the stock truck

 

So just throwing a cam in the 86 wouldnt have as much of a power gain as putting it in the 93? The biggest thing is the 86 is running and i would have to rebuild the 93 which is more money. I'm just looking for some cheap power adders. As I would like to get a newer truck in the near future.