MDchanic

Just wanted to clarify the ID of this divorced-choke QuadraJet I pulled off my '70 Cutlass convertible about twenty years ago and just dug out of the garage:

Number 7029253
Date 0515

The number looks to belong to a 1969 400 from a 442,
but the date code appears to be from February, 1975.

Internally, it has 0.072 main jets and AU secondary rods, but the primary rods are 50B instead of 49B, which I don't think is a major difference, but, hey, what do I know?

The body of the carb has a number of punch marks, which seem to me to indicate at least one professional rebuild, as I can't imagine another reason for them.

I'm assuming that this is a service replacement for the '69 400 made in 1975.
Am I right?
Any other information I might find useful?

Thanks,

- Eric

rcorrigan5

It is a service replacement carb for a '69 4-4-2 with a manual transmission. And it was built on the 51st day of 1975. Usually, service replacement carbs don't have the two letter broadcast code and it appears yours does not, either. The jets could have been changed during a rebuild to serve someone's better purpose.

I had the same thing on my '70 GTO and it threw me off until I found out about service replacement carbs.

Randy C.