[Gregski]

If I am not concerned with SMOG and emissions can I replace the mid '75's EGR carburetor spacer I have now with an early '71 style non EGR one, or better yet do I need a spacer at all?

My Motorcraft 2150 carb has a PCV port on the base of it, so I placed the carb on the intake manifold without any spacers and I did not have any clearance problems. I did google carb spacers and I guess they serve a purpose other than giving you an inch of height, but I figure I ask you anyways if I need one. I figure with it I can have leaks between the carb and the spacer as well as between the spacer and the intake manifold, so I am thinking why not just eliminate it all together.

Again I am new to this car stuff so please be gentle. Pictures below:

[Gregski]

Here are the three spacers I accumulated from junk yards. They look similar but the two smaller ones have a base plate that is narrower from front to back they are 3 inches by 5 1/4 inches, the big one which is what came on my engine measures 3 1/4 inches front to back and 5 1/2 accross. So when I use one of the two smaller ones there is a small gap between the spacer and the carburetor.

At this point I am thinking of keeping my original spacer and fabbing a EGR block off plate, no big deal, but I wanted to use the spacer in the middle without the nipple for a clean look since my 2150 Motorcraft 2 barrel carb has the PVC nipple on its base already.

I'm sharing the pictures and part numbers to help someone else down the road.

LEFT: D2TE-9A589-BA (but the year stamped in the circle says 71)

MIDDLE: no part number (but the year stamped in the circle says 72)

RIGHT: D50E-9A589

[Gregski]

Since non of the non EGR carburetor spacers would work with my EGR manifold I decided to make an EGR block off plate out of 1/4 inch thick piece of steel I found in the garage, probably overkill but less cutting. Please note the different bolt sizes, I have no idea why Ford did that, but one is bigger than the other.