Date code on Q-Jet
Thread Starter
Melting Slicks
Joined: Mar 2005
Posts: 2,838
Likes: 10
From: Austin TX
Date code on Q-Jet
I've got a 73 with a 454 with the original q-jet. The stamping is 7043201. According to my book "1970-75 Chevy by the Numbers" (Alan Colvin) the date code is the four digit Julian code,..the first three of digits is the day of the year and the last digit is the year of the car (or is it the year the carb was built?)
Regardless, the date code on my Q-Jet is 1499,..and I'm sure of the digits.
Why isn't the last digit a "3"?
Regardless, the date code on my Q-Jet is 1499,..and I'm sure of the digits.
Why isn't the last digit a "3"?
Last edited by 73, Dark Blue 454; Mar 2, 2006 at 12:12 AM.
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Originally Posted by 73, Dark Blue 454
I've got a 73 with a 454 with the original q-jet. The stamping is 7043201. According to my book "1970-75 Chevy by the Numbers" (Alan Colvin) the date code is the four digit Julian code,..the first three of digits is the day of the year and the last digit is the year of the car (or is it the year the carb was built?)
Regardless, the date code on my Q-Jet is 1499,..and I'm sure of the digits. Why isn't the last digit a "3"?
Regardless, the date code on my Q-Jet is 1499,..and I'm sure of the digits. Why isn't the last digit a "3"?
You do indicate it's an original carb but than unless your the first owner...how do you know its original? What is the broadcast code (two letter code) that follows the date code? Continue your study and let us know what you discover.
Thread Starter
Melting Slicks
Joined: Mar 2005
Posts: 2,838
Likes: 10
From: Austin TX
Ahhh,..no, I'm not the first owner,..I'm the third. So obviously this is a replacement carb.
No, the "149" doesn't match either,..my 73 is a January build.
Were service replacement carbs built six years after the fact?
Thanks for the help.
No, the "149" doesn't match either,..my 73 is a January build.
Were service replacement carbs built six years after the fact?
Thanks for the help.
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Originally Posted by 73, Dark Blue 454
Ahhh,..no, I'm not the first owner,..I'm the third. So obviously this is a replacement carb.
No, the "149" doesn't match either,..my 73 is a January build.
Were service replacement carbs built six years after the fact?
Thanks for the help.
No, the "149" doesn't match either,..my 73 is a January build.
Were service replacement carbs built six years after the fact?
Thanks for the help.
