Did any 351s up to 96 have mass air fuel injection?

 

Yes. For California emissions

 

And non-CA trucks as well.

 

I thought non-CA got speed density. I guess maybe that depends on if we are talking f150 vs f250 vs f350?

 

yeap, your rite!

 

There were OBDI MAF 5.8 in 95, possibly 94.

In Cali & some parts of the N. East/New England.

 

I own a 1995 F250 5.8L with factory MAF. California emissions.

 

Does your engine have a knock sensor, if so where is it located?

 

No. No knock sensor.

Don't trust me but I do not believe any 351W/5.8L have a knock sensor from the factory. Only the 5.0L and probably the Mustangs only.

Again, don't trust me what so ever.

 

There was no knock sensor on any EFI 5.8.

 

Many thanks guys, I am in the process of rebuilding a 351 from a 250 that was speed density. The 150 I have was a 302 with Mass air. I am going to use the 302 harness and control system on the 351. I will just leave the knock sensor disconnected.

 

If I was in your shoes, I would look into using the knock sensor. At least look into the fact it is a benefit or not. You will need to figure out the tuning for the control module if you are going to up the size of the engine.

 

I sure like that about don't trust me whatsoever, 1Butcher
I should add that disclaimer to all of mine
Ford made so many different models for low altitude and such markets that it is hard to say absolutely what they made specifically this or that market
TX for instance
Most cars had a MAF by 92-94 and the trucks just a little later IIRR

 

There is a 7/16” 13 threaded hole on the right rear of the block, the knock sensor is 1/2” 13. I can make an adapter on my lathe or drill and tap the rear corner of the intake manifold over the rear water passage of the head.
So far my biggest problem is locating a “Y” pipe for the 351. Every number I have found so far is not available. The JY did not have the pipe from the doner truck. If any one close to me has a “Y” pipe let me know.

 

I'm very interested in your 5.8 knock adaption.

I can utilize one with the pimpx if I make a place to screw one in.

Problem is, there's no place central to listen equidistant to both heads.

Does it matter?