Help! Deciphering engine sequential number
Thread Starter
2nd Gear
Joined: Mar 2015
Posts: 2
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Help! Deciphering engine sequential number
Hello,
I have a few engines at my shop from 20 years collecting. The other day I decided to spend some time decoding the engines and components. My mission was to find out what I have.
One block in particular I do hope someone can help me with....or at least direct me accordingly.
This is what I know of this engine block:
Casting # 3858180 (327 cu.in.)
Dated B 12 6 (February 12 1966)
Casted "T" on rear flange (Tonawanda)
Stamped Sequence # 216632279 ( I am having difficulty deciphering)
From my research, I believe this to be one of the Tonawanda blocks used in 66 when there was a shortage (or ran out) of Flint blocks. I have read that this block (3858180) was used on Passenger, Chevelle, and Corvettes in 1965 and 1966. What separates my block from the Passenger and Chevelle is the lack of Engine Code stamped into the front passenger side pad. I do have the sequential number (216632279) only, which I read is correct for 1965-1967 corvettes.
If someone could please help me with confirming this information, and hopefully decipher the sequence number, I would appreciate this.
I have a few engines at my shop from 20 years collecting. The other day I decided to spend some time decoding the engines and components. My mission was to find out what I have.
One block in particular I do hope someone can help me with....or at least direct me accordingly.
This is what I know of this engine block:
Casting # 3858180 (327 cu.in.)
Dated B 12 6 (February 12 1966)
Casted "T" on rear flange (Tonawanda)
Stamped Sequence # 216632279 ( I am having difficulty deciphering)
From my research, I believe this to be one of the Tonawanda blocks used in 66 when there was a shortage (or ran out) of Flint blocks. I have read that this block (3858180) was used on Passenger, Chevelle, and Corvettes in 1965 and 1966. What separates my block from the Passenger and Chevelle is the lack of Engine Code stamped into the front passenger side pad. I do have the sequential number (216632279) only, which I read is correct for 1965-1967 corvettes.
If someone could please help me with confirming this information, and hopefully decipher the sequence number, I would appreciate this.
Race Director
Joined: Jan 2002
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From: Close to DC
C2 of the Year Finalist - Modified 2020
From what I have read, the engine's use in Vettes is undocumented. Probably passenger car and or truck use. The sequence number doesn't look anything like a Vette serial number found on an engine pad. Others may add to this. 
Dennis
Dennis
Team Owner
Joined: Jul 2006
Posts: 22,164
Likes: 4,172
From: Kannapolis NC
The number stamped on the pad of a 65 or 66 Corvette would be similar to:
5106778 or 6106778
with the first number being the year, second number ( always a 1) a place holder, and then the next 5 numbers the sequential number matching the last 5 of the vin.
5106778 or 6106778
with the first number being the year, second number ( always a 1) a place holder, and then the next 5 numbers the sequential number matching the last 5 of the vin.
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
