Original carb?
Race Director
Joined: Oct 2000
Posts: 12,680
Likes: 3,134
From: Shamong, NJ
Sure, the NCRS generally accepts dates up to 6 months prior to the assembly date of the car. Carbs and engines came from a different plant than St. Louis, and often carry different dates. Things shipped to St. Louis pre-assembled, such as an engine or trans, usually have component parts with similar dates (blocks, heads, intakes, etc. usually are dated within a few days of each other). Ancillary parts such as carbs, distributors and alternators, often have differing dates. Many factors could effect the date of parts added on the assembly line; demand for that part, how deep in the crate or how far back on a shelf it was, production scheduling at the supplier's facility (suppliers often ran batches of parts and inventoried them until needed to save on production costs), the production sequence at St. Louis, etc.
I have an 81 I bought new. It was built in Oct. 81 at Bowling Green. The original mufflers are dated June 81, the engine block and the carb dated July, the left door glass is dated July, the right door and rear window glass August and the windshield September.
I have an 81 I bought new. It was built in Oct. 81 at Bowling Green. The original mufflers are dated June 81, the engine block and the carb dated July, the left door glass is dated July, the right door and rear window glass August and the windshield September.
Team Owner
Joined: May 2001
Posts: 87,364
Likes: 1,592
From: Western NY
Is it a Holley, or a Rochester carb? I used to have a neighbor who worked for Rochester Products, and in the course of a general conversation about carbs, he mentioned that they were shipped on pallets of 144 units. I would assume that the different models of carbs were "batch built" per application. So, if Chevrolet projected "X" numbers of that engine/tranny combination were needed for the year, I could see them shipping a certain number of pallets to the Tonawonda factory for installation, as needed.
In this instance, you're only talking a 90 day lead time....
Team Owner
Joined: Sep 2006
Posts: 31,270
Likes: 4,362
From: Westminster Maryland
I argree it's possible too.
I have an August intake manifold on a December 31 cast and January assembled 350/270.
Regards,
Alan
PS: I think Gerry's thoughts are what happens more usually, but the 6 month window is real.
I have an August intake manifold on a December 31 cast and January assembled 350/270.
Regards,
Alan
PS: I think Gerry's thoughts are what happens more usually, but the 6 month window is real.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: May 2001
Posts: 87,364
Likes: 1,592
From: Western NY
Are you positive about that?? By '72, the smog regulations had taken effect, so most of the engines were of the "low performance" variety, and had Rochester Quadra-Jets. The rare "HP" versions had Holleys.
Back then, I had a BB '71 Chevelle, my first brand new car, and it was factory equipped with a QJ.
Pro
Joined: May 2006
Posts: 567
Likes: 5
From: bradenton fl
Are you positive about that?? By '72, the smog regulations had taken effect, so most of the engines were of the "low performance" variety, and had Rochester Quadra-Jets. The rare "HP" versions had Holleys.
Back then, I had a BB '71 Chevelle, my first brand new car, and it was factory equipped with a QJ.
Back then, I had a BB '71 Chevelle, my first brand new car, and it was factory equipped with a QJ.