Hi there ya'll
I have a 92 ford f150 with a 302 windsor, recently found out that my parts truck has a 302 High out put windsor from a 94'. the plan was always to replace my current motor with this one in my 91 parts truck. I noticed it has the mas air flow air box but there was no senor in the truck. My question is should i get a computer and a mas air flow harness when i go to swap thses motors and what else should i be thinking about when pulling the motor this summer. should i just go ahead and replace all the gaskets whole motor is out same with engine mounts or can i just use the wiring harness in my current truck. is this motor just going to drop in and be compatible with my curremt setup

 

It's up to you, you can pass up on mass air and simply put it in using the speed density electronics and adjust your plug wires go account for the cam.

Or utilize mass air and swap the computer and wiring harness because the pinout won't be the same. If you go mass air it would be a good time to upgrade heads and headers, intake side is already decent.

Either way yes you should do a gasket set and enjoy peace of mind and no leaks.

 

Would i need a whole new engine bay wiring harness n comp or just the mass air flow hook up ? to clarify

 

No.. .a '94 truck motor isn't a HO but it is slightly more powerful than your '92, the only difference between them is the camshaft. If you still want to swap them then don't use any wiring from the donor just drop in the bare motor and plug in the wiring that is already in the truck.

A MAF conversion is a bit more complicated, there is no way to do it by simply swapping harnesses you have to open up the PCM connector and add wires for sequential injection and the MAF meter, and then you need a MAF PCM that also matches your transmission and some of them are easier to come by than others.

 

Maybe the person who sold me the truck is wrong about the year the motor is from , I know that the motor has a different firing order because of the plug order on the distributor cap and its the only 302 motor that does not have the same firing order as the other models. that being said then i would have the pcma modified wiring harness i just havent seen the wiring harness for the maf i dont think it was hooked up?

 

but thank you for the info i ll delve into the project a little later and upload some pictures of the donor motor

 

The engine firing order did change on the truck motors in '94... due to the cam change.

 

Windsor (289, 302, 5.0, 5.0HO, 351) Firing Orders
Have you ever needed to know what the cylinder firing order on your windsor motor is? Fear not, as we have the cylinder numberings for pretty much all windsor combinations out there!

<table><tbody><tr><td>289</td><td>1-5-4-2-6-3-7-8</td></tr> <tr><td>302 (Pre-82)</td><td>1-5-4-2-6-3-7-8</td></tr> <tr><td>5.0</td><td>1-5-4-2-6-3-7-8</td></tr> <tr><td>5.0 HO</td><td>1-3-7-2-6-5-4-8</td></tr> <tr><td>5.0 Truck</td><td>1-5-4-2-6-3-7-8</td></tr> <tr><td>351</td><td>1-3-7-2-6-5-4-8</td></tr></tbody></table>

 

the 5.0 HO is the firing order thats in my parts truck and other 302 firing orders are my current setup is the 302 in the 94 a step between the 96 and the earlier 93

 

Like I already said, the cam changed in the truck motor in '94 to the F4TE(explorer) cam which has the 351/302HO firing order, but it's not a HO cam and that doesn't make it a HO motor.. there are additional things that make a HO motor unique.

 

okie dokes thanks for the info

 

alright so i did a little history on the 302. Conaski thank you for clarifying the information and leading me to the texts i came across. after a little reading i found that the 302 HO motor is actually a 302 with planned down 351 heads and several other differences. from 85 - 93 the 302 windsor was packing a 185 hp, but from 94-96 and some 97's the 302 cam was replaced with a roller cam which increased its performance and saw a gain in 10 hp. the high output motors are also referred to as a boss

 

Whitey.. I don't know where you're getting your data but there is as much bad as there is good in it. You're in luck though because you have already found one of the best sources for accurate Ford info on the web right here on FTE. If you got questions this is the place to ask.. somebody here knows the right answer.

The things that make the 302HO unique form the plane jane 5.0 are forged pistons, a unique roller cam, a unique HO intake system in the EFI years, and from '89 on it also used sequential MAF injection... something that the trucks didn't get until '95. This is still just a 9:1 motor and from '87 on it wore the exact same heads as the truck motor, and the kicker is the 5.0 truck intake vastly outflows the HO version so a truck motor just needs a cam and an exhaust system to make 260-275hp... been there and done that. Another funny stat is that the Explorer version of the 5.0 got the much better GT40 heads and intake so that motor is only a cam(and exhaust) away from 300+hp, yet it was never considered a "HO".