help with carb identification
Thread Starter
Drifting
Joined: Aug 2002
Posts: 1,731
Likes: 22
From: Marietta Ga.
help with carb identification
I have a '72 base 350/200hp auto, in the book "Corvette Restoration Guide 1968-1982 by Richard Prince, he lists two Rochester MV4s for this application.
350/200, automatic 7042202
350/200, automatic with NB2 7042902
The NB2 stands for Exhaust Emission Control option.
My question is, What is the NB2 option( I can not find any other information on it in the book) and how do I know if my car had it if I don't have a build sheet etc? I don't know which carb to look for.
Thanks for the help
350/200, automatic 7042202
350/200, automatic with NB2 7042902
The NB2 stands for Exhaust Emission Control option.
My question is, What is the NB2 option( I can not find any other information on it in the book) and how do I know if my car had it if I don't have a build sheet etc? I don't know which carb to look for.
Thanks for the help
Safety Car
Joined: Sep 1999
Posts: 4,930
Likes: 11
From: AnyTown NJ
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
The NB2 option refers to base engine cars equipt with an air injection pump or smog pump. This was standard on all LT1's and 454 b/b's. It was only installed on base engine cars delivered for sale in California. So if you own a CA car you would have an air pump and carb # 7042903 (4sp) or 7042902 (auto).
If you do not have a Ca car then you would not have an air pump and you should have carb # 7042203 (4sp) or 7042202 (auto).
Hope this helps.
If you do not have a Ca car then you would not have an air pump and you should have carb # 7042203 (4sp) or 7042202 (auto).
Hope this helps.
Thread Starter
Drifting
Joined: Aug 2002
Posts: 1,731
Likes: 22
From: Marietta Ga.
Thanks guys, I have an automatic GA car. The POP was with it and shows it was delivered to a customer in Augusta, Ga on 12/27/71. I don't have the correct carb and saw a 7042902 on Ebay. Check item 7972098475 before 5/9/05.
