Build Sheet/Engine Number
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3rd Gear
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Build Sheet/Engine Number
I am shipping one of my Corvettes (C7) to the UK. They require the engine number of the vehicle. What a pain trying to find it! Does anybody know if it is on the build sheet of the car??
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Bill
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I have the original factory assembly paperwork (2 large spec sheets and 1 ltr-sized colored sheet) for my '18 that was stashed under the passenger seat. None of that has an engine number. Hence, no easy way to find it if hidden under all the crappola atop the engine.
(regarding GM engine numbers, as an aside I bought a new LS3 E-rod crate engine and "kit" some years ago for a project right off the Vette assembly-line with all the unique Vette parts. It was an early engine number in the teens, but the shocking part was that no number was stamped on the engine anywhere, instead being stamped on a small, stick-on, aluminum "plate" like used on award trophies! It popped off and is now in a file folder... no factory number on the factory engine at all!
)
(regarding GM engine numbers, as an aside I bought a new LS3 E-rod crate engine and "kit" some years ago for a project right off the Vette assembly-line with all the unique Vette parts. It was an early engine number in the teens, but the shocking part was that no number was stamped on the engine anywhere, instead being stamped on a small, stick-on, aluminum "plate" like used on award trophies! It popped off and is now in a file folder... no factory number on the factory engine at all!
)
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It would be great if the engine number was on the build sheet - guess GM may have felt that it was a bit of information that is not used that often so no need to including it on the build sheet.
Melting Slicks
Joined: Sep 2000
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From: Chester Virginia
For 1F5118588
1st Number = GM Division: 1 Chevrolet
2nd Number = Production year: F = 2015
3rd Letter = The assembly plant: 5 = Bowling Green
Last 6 Digits = Equal the last six digits of the vehicle’s VIN: 18588 = Car Sequence Number
1st Number = GM Division: 1 Chevrolet
2nd Number = Production year: F = 2015
3rd Letter = The assembly plant: 5 = Bowling Green
Last 6 Digits = Equal the last six digits of the vehicle’s VIN: 18588 = Car Sequence Number
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While I can easily understand the first character being a "1" to represent Chevrolet as the first or lowest price ranked GM division, but using an "F" makes no sense to define a date, since working backwards to an "A", would put the starting date in the C6 era.
Now if the first character was a "number" "1" and the second character was a "number" "5",to represent the last digit of the year, and then the 3rd character was a "letter" "F" for the assembly plant, then that'd make perfect sense for a preface of 15F to a 6 digit assembly number sequence during the pre-defined model year.
Although I haven't researched this engine identification system, I do know the difference between a "letter" and a "number".
Last edited by HOXXOH; Feb 11, 2023 at 12:04 PM. Reason: revised
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The year and plant characters are handled the same way as they are in the VIN. E = 2014. F = 2015. K = 2019. 5 is the plant code for Bowling Green.
Engine example: 1F5118588
VIN example: 1G1YK2D72F5118588
Engine example: 1F5118588
VIN example: 1G1YK2D72F5118588
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2nd Number = Production year: F = 2015
3rd Letter = The assembly plant: 5 = Bowling Green
he used the word "Number" for the second character, which was a "letter" and used "Letter" for the third character, which was a "number".
Then when his post only showed the last 5 numbers of the "last 6 digits" of the VIN, I couldn't be sure if anything was correct.
Without knowing GM's method, trying to decipher his explanation was more than just difficult.
Melting Slicks
Joined: Sep 2000
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From: Chester Virginia
Corrections:
For Engine ID 1F5118588
1st Character = GM Division: 1 Chevrolet
2nd Character = Production year: F = 2015 As in the Engine ID on my 2016 Vette: G=2016 and in my Vette VIN there is a G in the year place holder
3rd Character = The assembly plant: 5 = Bowling Green
Last 6 Characters = Equal the last six digits of the vehicle’s VIN: 118588 = Car Sequence Number
For more details see:
https://chevygeek.com/small-big-bloc...y-engine-code/
For Engine ID 1F5118588
1st Character = GM Division: 1 Chevrolet
2nd Character = Production year: F = 2015 As in the Engine ID on my 2016 Vette: G=2016 and in my Vette VIN there is a G in the year place holder
3rd Character = The assembly plant: 5 = Bowling Green
Last 6 Characters = Equal the last six digits of the vehicle’s VIN: 118588 = Car Sequence Number
For more details see:
https://chevygeek.com/small-big-bloc...y-engine-code/