Motor ID
Thread Starter
2nd Gear
Joined: Oct 2017
Posts: 2
Likes: 0
Motor ID
I have an engine casting #3789935 which is supposedly a 61-64 283 cu in.
Assembly ID #F-103 ID. From what I understand the F stands for Flint where the corvette motor is made. It has a 2 4 barrel intake GM part#3739653.
Is this a true vette motor? Would be willing to sell.
Assembly ID #F-103 ID. From what I understand the F stands for Flint where the corvette motor is made. It has a 2 4 barrel intake GM part#3739653.
Is this a true vette motor? Would be willing to sell.
Race Director
Joined: Apr 2017
Posts: 10,247
Likes: 888
From: Hickory NC
2025 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
2020 C5 of the Year Finalist - Modified
St. Jude Donor '17 thru '26
Welcome to the Forum!
I'd suggest putting this information request on the C1/C2 section of the Forum: https://www.corvetteforum.com/forums...-1953-1967-21/
Good luck.
I'd suggest putting this information request on the C1/C2 section of the Forum: https://www.corvetteforum.com/forums...-1953-1967-21/
Good luck.
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
I have an engine casting #3789935 which is supposedly a 61-64 283 cu in.
Assembly ID #F-103 ID. From what I understand the F stands for Flint where the corvette motor is made. It has a 2 4 barrel intake GM part#3739653.
Is this a true vette motor? Would be willing to sell.
Assembly ID #F-103 ID. From what I understand the F stands for Flint where the corvette motor is made. It has a 2 4 barrel intake GM part#3739653.
Is this a true vette motor? Would be willing to sell.
Welcome to the Forum!
I'd suggest putting this information request on the C1/C2 section of the Forum: https://www.corvetteforum.com/forums...-1953-1967-21/
Good luck.
I'd suggest putting this information request on the C1/C2 section of the Forum: https://www.corvetteforum.com/forums...-1953-1967-21/
Good luck.
And if you want to sell it here on the forum, you need to post it here:
https://www.corvetteforum.com/forums...d-c2-parts-59/
Be sure to include a forum-required asking price.
Race Director
Joined: Apr 2014
Posts: 15,067
Likes: 4,758
From: Washington Township Michigan
2025 C8 Stingray of the Year Finalist - Unmodified
2024 Corvette of the Year Finalist - Unmodified
2023 C6 of the Year Winner - Unmodified
2020 C6 of the Year Finalist - Unmodified
2019 C6 of Year Finalist (appearance mods)
Welcome to the forum!
Google would assist with your casting number, and you may find the rest in the C1 - C2 area.
Google would assist with your casting number, and you may find the rest in the C1 - C2 area.
Administrator
Joined: Mar 2001
Posts: 368,532
Likes: 24,824
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Moving this over to the C1 & C2 Corvettes Section. And as mentioned, if you intend to sell some parts, be sure to post them in the C1/C2 Parts for Sale section.
Melting Slicks
Joined: Apr 2010
Posts: 2,142
Likes: 282
2018 C2 of Year Finalist
2015 C2 of the Year Finalist
I have an engine casting #3789935 which is supposedly a 61-64 283 cu in.
Assembly ID #F-103 ID. From what I understand the F stands for Flint where the corvette motor is made. It has a 2 4 barrel intake GM part#3739653.
Is this a true vette motor? Would be willing to sell.
Assembly ID #F-103 ID. From what I understand the F stands for Flint where the corvette motor is made. It has a 2 4 barrel intake GM part#3739653.
Is this a true vette motor? Would be willing to sell.
Yes, the 3789935 block was a 283 but only used in Corvettes during 1961. The engine assembly stamp starting with “F” should be followed by a four number date code (month and day) and then a two-letter suffix. If you’re saying the suffix is “ID” it doesn’t track with any 283 suffix I can find. The “F” engine assembly stamp means it was made at Flint but not necessarily for a Corvette – they also made passenger and truck engines.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
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
Team Owner
Joined: May 2005
Posts: 31,497
Likes: 1,313
From: Huntsville AL
I have an engine casting #3789935 which is supposedly a 61-64 283 cu in.
Assembly ID #F-103 ID. From what I understand the F stands for Flint where the corvette motor is made. It has a 2 4 barrel intake GM part#3739653.
Is this a true vette motor? Would be willing to sell.
Assembly ID #F-103 ID. From what I understand the F stands for Flint where the corvette motor is made. It has a 2 4 barrel intake GM part#3739653.
Is this a true vette motor? Would be willing to sell.
Flint
I0 = October
3I - 31st
D = suffix code, 283, 2bbl, powerglide, in a passenger car 61-60=170hp, 63-64 = 195 hp