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[C2] date code stamp

Old 08-26-2017, 10:06 PM
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65chevyman
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Hi everyone. I have gotten a lot of good info from this site and now I ran into a situation that I cannot find help with so I finally joined. I hope someone can help.
I'm interested in replacing my carburetor with a correct date coded one. Looking at my engine date code stamp it shows F033IHT. F for flint 03 for March and HT for 350 hp. What does 3I mean? Did chevy use the "I" for a number 1? Thank you in advance.
Old 08-26-2017, 10:14 PM
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65GGvert
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Yes, they used I for 1. that's Mar 31st
Old 08-26-2017, 10:14 PM
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Originally Posted by 65chevyman
Hi everyone. I have gotten a lot of good info from this site and now I ran into a situation that I cannot find help with so I finally joined. I hope someone can help.
I'm interested in replacing my carburetor with a correct date coded one. Looking at my engine date code stamp it shows F033IHT. F for flint 03 for March and HT for 350 hp. What does 3I mean? Did chevy use the "I" for a number 1? Thank you in advance.
March 31 and welcome to the forum.
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65chevyman (08-26-2017)
Old 08-26-2017, 10:14 PM
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And welcome to the forum.
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Old 08-26-2017, 11:07 PM
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ricks327
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Welcome to the Corvette Forum! You might find some responses questioning why you would want a correct dated part but remember that is your choice. You asked a legitimate question and received the correct answer.
Remember that most members, who would ask why a dated part, are trying to give you an alternative for the possibility of something better. Take it all in stride and enjoy.
Rick
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Old 08-26-2017, 11:57 PM
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Originally Posted by 65GGvert
Yes, they used I for 1. that's Mar 31st
Thanks so much. That's what I thought but couldn't find anything in my books.
Old 08-27-2017, 09:03 AM
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R66
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Originally Posted by 65chevyman
Thanks so much. That's what I thought but couldn't find anything in my books.
Welcome to the forum, but one thing you have to learn:

We love EYE CANDY. That doesn't always mean lovely young girls (I am forbidden to stare at them by my wife). It means CARS in any condition.

Where are pictures of your CAR??? I am surprised others haven't chewed your butt for no PICS, even love piles of parts.
Old 08-27-2017, 10:01 AM
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Yes, pictures are required from new guys. BTW, welcome.

I assume that you know that an HT code mean that yours is a L79 (hydraulic lifters), 350 HP engine with a 4 speed manual transmission, with no AC or TI.

The correct carb for your car is the model 4150 Holley, carb list # 2818-1, part number 3849804.

The correct date coding for '65 Holleys will have only three digits (four digits came into being in 1973), with:

First digit year: 5 (for 1965) (could be a late 1964 carb with a 4)

Second digit month: 1-9 (January - September), 0 for October, and A for November and B for December. Obviously, yours should be very late 64 or early 1965.

Third Digit: The week of the month: 1-5 numbers only.

So, the 10th of January would read on the right side of the horn:
3849804
List 2818-1
512

Also, the metering blocks should be stamped 4094 for the primary bowl side and 4099 for the secondary bowl side.

I think NCRS allows up to six months before car production date for an allowable "original" date-coded carb. But Colvin's book shows that closer dates are more common.

Last edited by Easy Rhino; 08-27-2017 at 10:01 AM.
Old 08-27-2017, 09:12 PM
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65chevyman
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Originally Posted by R66
Welcome to the forum, but one thing you have to learn:

We love EYE CANDY. That doesn't always mean lovely young girls (I am forbidden to stare at them by my wife). It means CARS in any condition.

Where are pictures of your CAR??? I am surprised others haven't chewed your butt for no PICS, even love piles of parts.
I'll see if I can get my son to post pics. I'm not to knowledgeable when it comes to computers. My car is a 1965 L79 4 speed convertible with side pipes. It is maroon with maroon interior with white top. I hope this will hold you until I post pics. Nice talking to you!
Old 08-27-2017, 09:14 PM
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65chevyman
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Originally Posted by Easy Rhino
Yes, pictures are required from new guys. BTW, welcome.

I assume that you know that an HT code mean that yours is a L79 (hydraulic lifters), 350 HP engine with a 4 speed manual transmission, with no AC or TI.

The correct carb for your car is the model 4150 Holley, carb list # 2818-1, part number 3849804.

The correct date coding for '65 Holleys will have only three digits (four digits came into being in 1973), with:

First digit year: 5 (for 1965) (could be a late 1964 carb with a 4)

Second digit month: 1-9 (January - September), 0 for October, and A for November and B for December. Obviously, yours should be very late 64 or early 1965.

Third Digit: The week of the month: 1-5 numbers only.

So, the 10th of January would read on the right side of the horn:
3849804
List 2818-1
512

Also, the metering blocks should be stamped 4094 for the primary bowl side and 4099 for the secondary bowl side.

I think NCRS allows up to six months before car production date for an allowable "original" date-coded carb. But Colvin's book shows that closer dates are more common.
Thanks for the welcome and info. Pics to come.

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