i have a 75 hi boy and i need a list of all the emissions equiptment that was factory installed on the truck so i can pass the newly enacted emission testing in my area (mid/south eastern pa) . its a 250 regular cab 360 a.t. and currently dosent have any emissions equiptment on it. did it have catylitic converters, air pump, egr stuff,? what else is there? any help is appreciated, thanks

 

I believe PCV was about it. Look at the dash or fuel filler to see if there is a sticker requireing unleaded only. My 78 had nothing on it except an EGR plate under the carb.

 

75 your right around the cut off part here in PA (or atleast last time I checked... ) Check your valve cover sticker to see what all it says. CAT/AIR/EGR proper gas cap, etc. I belive 75 would just be the EGR Unless your where it is actually tested, it only needs to be there (visual inspection) doesn't have to be working

 

thanks for the help guys, im going to check that stuff out. the egr plate might still be on there. thanks again.

 

I thought on trucks it was closer to early to mid 80s and slowly worked its way from the 100 series next year 150 series then 250s the next year then the 350s around 87. I know during this era they had 4 or so different HP ratings on some engines depending on emmision levels as they were leveyed on the different weight classes. Not too shure about when it realy started.