Topic: 6 Cylinder Carburetor Spacer Variations

[suskeenwiske]

I searched through past postings but did not find any reference to what I just found on two Carb Spacers. The hole for the PCV Hose Nipple is 1/4" NPT on one, (bottom photo) and 3/8" on the other. Admittedly, the 1/4" has a 1963 Part Number, C3DE-9A589-F, and the 3/8" a 1966 Part Number, C6DE-9A589-A. Was there possibly a running change made during those three years, or were there actually Spacers that varied depending on the car?

My Engine Block has a December 1964 Date Stamping, the Dearborn Coupe an estimated Build Date of January 23, 1965 and the Carburetor Tag has a first week of February Date Code. My question is twofold: is a Spacer with either a 1964 or 1965 Date Code acceptable and what should the hole size be?

Thanks in advance.

Ray

[C5ZZ]

Ray, Here are a few spacer pictures,
the one on the left is the C3DE version that came off a 65 Fairlane.
The other one is a C6DE (without the gasket) that came off a 66 Falcon.
I would say that you should go with the C3DE version on your 65.
Don't believe I have ever seen a C4DE spacer.