I have a 96 F150 with a 302 mass air and I want to put a cam in it but im not sure if it is flat tappet or roller. Also if it is roller I dont know what cam to use because they are all made for the 302HO and 351W firing order. What would I need to do to change my truck to the HO firing order?

 

Your 96 5.0 has an F4TE roller in it now. Specs are 256/266 degrees advertised duration ( int/exh) lift is .420/.445 Simply adding a set of 1.7 "Cobra" roller rockers will up the lift to .445/.472 which is a tad better than the HO roller. The HO roller only has 10 degrees more duration than the F4TE.

 

Good info there.

Swapping the cam is what can swap you're firing order, but you can just get a roller cam for your stock firing order to make it easier on yourself. The firing order doesn't impact total power output as far as I know. But I believe if you wanted to go HO firing order, you need to change the cam to HO, and move the plug wires. Since you have MAF, you're injector sequence will also be off (sequential injection), so you'd have to change the firing order of the injectors too.

I'd stay stock firing order, you can get a cam for it, call Comp Cams.

 

The F4TE already uses the HO firing order. I've got a 95 E150 Van with it in it's 351W and another in my "spare" carbed 5.0. This cam works well with either EFI or carbs. Great mileage and torque. Pulls to 5500+ rpms too with 1.7 rockers

 

baddad457:

What cam is in a 1992 F150 5.0? What would be it's advertised duration ?

Thanks!!

 

the pre 94's got the "base" roller. Lift was .379/.395 ( int/exh) with 1.6 rockers. Duration was 244/256 (advertised) As you can see Ford made a huge leap in cam with the F4TE in the pickups & vans in 94 over the earlier ones. The "base" roller was also used in the std pass car roller 5.0's ( Crown Vic,Marquis,Lincoln Town car, etc.)

 

What is your source of information? It is difficult to get the advertised duration of Ford cams because the factory service manual doesnt list duration for some reason--just the lift at the cam lobe.

Would you also have the part number for this base roller cam that is in my 92 F150 5.0?

Is there a good internet source of information for Ford factory small block cams?

Thanks!

 

The specs are listed in Ford's book "The official Ford Mustang 5.0", by Al Kirschenbaum. It's got a chart in it that lists the specs for all of Ford's factory roller cams. The part # for your cam is F1AE-AA

 

The 92 cam will also have the non HO firing order, even though it is a roller cam. I don't know if this will work with your 96 since it has the HO firing order.

 

Will any other Ford factory cam work with my 92 speed density fuel injection system?I am surprised that the F1AE-AA cam is so conservative--my truck runs so well above 3000 rpm.

I also noticed that the factory cam spec's for the factory 5.8 fuel injected cam is very close to the factory 5.0 H0 Mustang cam.

This part number for my cam--F1AE-AA--would suggest that this cam came out in 1991--wouldn't it? The F is for 1990 and the 1 is for 1991--correct?

This factory post 94 model year change in cam profile explains why the post 94s have a higher horsepower rating of 199-205 horsepower--that and the MAF that came on the market place in 95-96.I also noticed that these later 5.0s had a EPA fuel economy rating of 1-2 MPG more.You guys with the post 94 5.0 have the best of both worlds--best fuel economy and the best factory horsepower ratings in a full size pickup for the 5.0.

 

Although your cam's part # is F1AE, this cam actually came out first in 86 under part # E5AE-AA. For some reason, Ford assigned it a new part # in 91. The F4TE cam was also used in the Explorer/Mountaineer and the roller cammed 351's.

 

If Ford changed the parts number from E5AE-AA to F1AE-AA-- on the 92 F150 cam--it is probably because in 92 the cam changed from non roller to roller cam--and needed a new parts number. I believe that model year 1992 was the first year for a truck 5.0 roller cam.

 

No it wasn't because the cam changed from flat tappet to roller. The E5AE-AA is a roller also. I've pulled them from late 80's Crown Vic motors. And if it was because it was going to be used in pickup trucks, why then the "A" in the F1AE? "A" denotes it's designed for full size cars.If it were for trucks there would be a "T" in place of the "A"

 

Good point about the A and T prefix on the part number. But I have heard that Ford commonly uses parts developed for one vehicle and prefixed accordingly--on another vehicle. I still dont understand why there would be another part number issued for the same cam profile.

What would be the complete part number for my 92 F150 5.0 cam? I think that I read that the numeric number after the prefix of the part number is common to all parts of the same type. But apparently--you know your cams and Ford part number much better than I do.

What were the Ford Factory power/torque ratings of the full sized Ford cars that had this same cam as my 92 F150 5.0. Did any of the 5.0s in the full sized cars have the same 185HP/270TQ rating as my 92 F150 5.0?

Thanks--always nice to hear from informed people--it is a struggle for me to keep up sometimes!!

 

Ford did the same thing with the HO cam. They made some minor change in the part, but the profile stayed the same. In 91, they deepened the cam retainer bolt hole, and gave it a new part #. Then in 94 they changed the cam's metal compostion, and again gave it a new part#. Now in 88 they changed the intake ramp slightly to reduce valvetrain noise, but the specs stayed the same. HP was reduced by 3 hp because of it. And agian they gave it another part #. I don't recall the numerical part # for a cam, really doesn't make a difference, as you said, the number's the same for all cams. As for the power rating with the "base" cam in trucks vs the cars, the cars had less power due to their crappy E6SE heads. I believe the advertised rating was somewhere in the 150-160 hp range. The difference in hp between the E6SE and E7TE heads was 25 hp on the top end. But the low end torque was higher for the E6's vs the E7's. Get the book I listed above, it's the best source of info for the 1979-to end of production on the 302/5.0. Also has some info there on other motors as well.