VCCA Home Forums TECHNICAL - 1945 AND EARLIER 1912-1928 Determining serial number of 27 Sport Cabriolet

I'm looking to see if there is a way to determine my 27 Sport Cabriolet's serial number. (No title and seat frame is missing). Are there any records at GM's Heritage center, or someplace else, that can cross reference my Fisher body Tag numbers or Engine serial number (assuming its original to the car)? I have yet to find anything online.

Thanks, Joe

The short answer is NO. There are no known existing records of production serial numbers. The best you can do is guess within a range of numbers and factories.

The only remote possibility is if the car was originally sold and registered in a county or municipality that still has the records. Talk about a needle in a hay stack!

Welcome to the Chevy Chat where you can find "almost" all of the answers to your questions. Just don't judge us based on this question, other questions we do better.

You didn't give us the body type. Is there a data plate on the cowl. No cowl, data plate on the floor/seat side, and no wood left of the seat makes your car a complete stealth unit.

This is what I have for numbers on the 27 Sport Cabriolet 2 passenger with a 2 passenger rumble seat.
Engine sn # 3449975
Engine Casting # 346709
Engine Mfg Date: F37
Has the Chevy Bowtie cast into block and a "4" cast on first cyl

Fisher Cowl Tag
Job 7250
Body 27900

I purchased the car from a gentleman in Indiana who had purchased from a gentleman from Missouri (working on info of the Missouri gentleman).

From a Ken Kaufmann document I found online, that body style was produced in Cleveland, OH. So like my Janesville produced sedan, is it safe to assume the car was assembled in Ohio since the body was produced in Ohio?

In comparison my 27 4dr 5 passenger sedan which is titled and I have the complete history from the Janesville factory to the dealership to the two previous owners. (Of course the car was never further than 20 miles from where it was made, and since I live in Janesville it was fairly easy to track the info down.)

sn# 21AA26800
Engine sn# 3128665
Engine Casting # 346709
No Bowtie casting and a "9" cast on first cyl

Fisher Cowl Tag
Job 7210
Body J 3019

Thanks,

Joe

Okay, now we have something to hang our teeth into.

Your first listing. F37 translates to June 3rd 1927. You didn't give the casting date for the head so that is a guess. If you read the head date I/you can translate it.

Fisher Cowl Tag
Job 7250
Body 27900 Job #7250 is a Cabriolet w/Rumble Seat. 27900 is the Fisher sequence number.

Data from the second listing.

sn# 21AA26800 This tells me the car was assembled in Janesville is a 1927 year of assembly, and sequence # 26800
Engine sn# 3128665
Engine Casting # 346709
No Bowtie casting and a "9" cast on first cyl

Fisher Cowl Tag
Job 7210 5 passenger sedan
Body J 3019 Fisher sequence #3019 and was from the Janesville plant.

Joe Wrote:

"From a Ken Kaufmann document I found online, that body style was produced in Cleveland, OH. So like my Janesville produced sedan, is it safe to assume the car was assembled in Ohio since the body was produced in Ohio?"

It is not safe to assume that your '27 Cabriolet was assembled in Ohio. The '27 Sport Cabriolet, early '28 Sport Cabriolet, and the later '28 Sport Cabriolet Convertible bodies were all built in the Cleveland Fisher Body Plant and shipped to the various assembly plants across the country for vehicle assembly.
Without the vehicle serial number it's going to be difficult to say exactly where your Cabriolet was assembled. The Cabriolet bodied vehicles had the vehicle serial number tag located on the front seat riser, passenger side, visible with the passenger door open. The Cabriolets also had the Fisher Body Build sequence number etched into the front seat riser, rear surface of the left to right (front) timber and should read, in your case, "Fisher Body, C 27900, providing the original wood is still there. The "C" preceding the 27900 indicates Cleveland.

In the case of your 5 passenger sedan, the 21 preceding the AB in your serial number tells us it was assembled in Janesville and the J preceding the build sequence number in the Fisher Body Cowl tag says the same thing.

Sorry Joe I don't have any answers for you but the numbers prompted some further questions. My brother and I own a 1927 Coach. The car serial number is 21AA-55640 (so I know the car was assembled in Janesville) and the engine serial number is 3429732. The engine casting number is F17 indicating a June 1, 1927 date.

Is it correct to assume that our Coach was the 28,840th car assembled after Joe's sedan? Were engine blocks cast at one location or several? Joe what is the casting date for your sedan? Do you know if the sedan has the original engine?

I forgot to mention that we have the original Michigan title for the Coach which has the engine and car serial numbers on it which matches what is still in it. Additionally, the title is dated June 17, 1927 and sold to a person in Gladstone, MI. This means the car was sold 16 days after the block was cast. Assuming time for shipping, etc. this engine was in a car very soon after it was cast.

Not too far from what would be expected. Sales were booming in 1927 as this was the first year production exceeded Ford.