1969 F100 1/2 ton with a 390 had what for emissions? I have a 69 that is new to me and was a partial basket case when I got it. The only engine parts I have is basically what a long block would be. I don't even have the alternator bracket. This is a custom cab truck and no a/c or power anything. I will be up grading to a/c and all power equipment if that makes any difference on the emissions equipment. Any suggestions for improvement to emissions is greatly need. Thank you,

 

Your '69 is pre-cat and pre-EGR, but it may have had a Thermactor (air pump) system on it. I don't know about the F100's, but the Broncos got air pumps in various years as the laws waffled back and forth regarding utility vehicles and light trucks. Passenger cars started getting the pumps in '66 or thereabouts, but trucks were inconsistent after that until about '73 when things started to gel a bit more.

You would for sure have had a PCV system, but that's not considered just a "smog" item by most of us. It's an absolute necessity for a long-lived street engine. Keeps the engine much cleaner and you don't have to change the oil every 1500 miles! Ok, so I'm exaggerating, but it's still a good thing.
Another thing that your Ford might have had was a dual-diaphragm distributor advance. Not sure when they started in the F100's, but the Broncos and some cars were getting them by '68/'69 too. However, this is one of those things that even here in CA they rarely know whether yours should have had it or not, or even how it was supposed to be connected. Most of us have replaced our distributors over the years and for a long time you could not even get one with a dual-diaphragm advance can on it. Still passed every time, but now I don't have to get it checked so not sure how they handle it nowadays.

Those CA-only (I think) NOX reducing add-ons that owners were supposed to install to upgrade their emissions equipment are not required by law to still be there as far as I know. Only stuff that was put there by the factory is required.

Other items that are checked at least here, but not all areas, are a fully enclosed air filter housing with connection for the PCV valve return air, AND for sure the hot-air choke stove riser tube from the exhaust manifold.
Some engines also got the flapper valve in the exhaust manifold (usually only the driver's side that I've seen) but I don't think your '69 would have had one of those.

That's about it just from my memory. The trucks did not have to have as much stuff as the passenger cars, and the trucks in most states did not have to have all the stuff they had on CA trucks. More differences still between US and Canadian shipped vehicles.
Hopefully someone will chime in with more info to fill the big gaps.

Paul

 

Oh, the carb spacer very likely in your heat also had heat riser ports and channels to heat up the intake and carburetor. Probably to reduce icing, but also to speed up warm-up running to clean up emissions.

Paul

 

Thank you for the info. I will be junk yard diving.

 

I can affirm...the Nox device was a retrofit requirement, but then later not required......basically a "Museum piece".

 

Only California trucks would have had exhaust thermactor (also known as air pumps) systems in 69.

 

Where I live in Texas they did not have all the emissions equipment that the California State put on their trucks, or that is what I have been told. I want to put headers and dual the exhaust out. I do have the original 390 air breather set up and the original valve covers. The intake was rusted out and the carb was frozen up. I will replace the intake with an aluminum 4V one and a 4V carb. I will also convert the distributer to electronic. No points or condenser. Thank you gentlemen for your help and I did post some pics on the 1967-72 forum.