Holley date codes decade. fordification. Does any...

Holley date codes decade. fordification. Does anybody know how to tell if this carb was manufactured on Jan. I This video details how to date carburettors that you do not know any history about them. C1 & C2 Corvettes - Holley 3810 date codes????? - I have two Holley carbs. I'm restoring my '69 Camaro Z/28 (Garnet Red, Ralley Sport, Endura, Black Vinyl Top, Deluxe Black Interior w/ Fold Down Rear Seat). This "translates" to the 150th. The part was designed in 1963. Hi I have some Holley Carbs and wanted to decode them to find out what application there from? Where do I look for the numbers and date codes? Is there an online application guide for Holley Carbs? Thanks Josh How to identify a Holley Carb age by Date Code Pontiac - Race What is the date of manufacture of this Holley carb? The 4 digits is throwing me off. For Holley carburetors, the two most common model numbers used in both auto and truck applications come the 4150 and 4160. Decode letters and numbers on your Holley carburetor to identify its exact manufacturing date, verify compatibility, and avoid costly mistakes when buying rebuild kits on AliExpress. Any Holley on a Corvette with a 4-digit date code is a later Service replacement. I'm trying to find out if this carb is new enough to have the power valve protection on it. 1967/1977/1987 Holley 4-barrel carburetor dated 2853 - 285=October, 3=1973. The Holley 4150 is the classic version of the Holley carb and features a square bore flange. Engine Understanding Production Date Codes By Moparr Motor - Detroit (Nov 1992, Dec 2004, Dec 2010) The following information can be used as your guide to better understand the date codes that are applied to components used in the production of vehicles. I have been offered one with a late October 67 date code, and another with a late March 68 date code. Thanks. assembly line models, utilize a three digit date code; numbers or numbers and letters are stamped just below the Holley "List" number on the front face of the choke housing air horn. Service replacement for 1967 L34 w/o A. * Engine Block Stamping ID/Date/CE (Chevrolet Engine) Information * Engine Suffix Codes (V8) - Chevelle specific - 1964 through 1972 by year * Engine Suffix Codes (V8) - All Chevrolet - 1955 through 1975 by code * Exhaust Manifold Casting Numbers/Dates * Holley Carburetor Numbers/Dates * Ignition Coil Numbers * Intake Manifold Casting Numbers/Dates This has been beat to death on many a forum but wondering if anyone here has some insight. Starts with the year on left, a letter in the middle for the month and a 1 or 2 digit number on the right depicting the day of manufacture. , Manual Transmission. correct, *some* 4bbl holley factory carbs did have a 4 digit date sequence, but the list number would identify it as such. There are various types of date code identification applied to material. E. Holley Carb Date Code Question Jump to Latest 7. Would a date code of 7B4 be correct for a 1968 Cougar XR7 GT produced on 12/19/1967? I understand that 7B4 means the 4th week of December 1967. An example of a Julian date, from one of my service replacement Holley tripower carbs is 1509. jim One notable feature is that when you are searching for what type of Holley carburetor you have, keep in mind that three-digit codes were used before 1973, but Holley carburetors typically have a four-digit code only. Surely the -3 revision should narrow it down some. both numbered 3906631-DA list 3810. On 4 digit codes the last digit is the year, but a "4" could be 1964 or 1974 or 1984 or 1994, so how do you really know what year? Holley Carb Identification I have a question about the date coding on a Holley 600 cfm carburetor - C8OF-9510-D. The air horn of the carb will be stamped with several numbers, including the Holley list number, the Chevrolet part number, and usually a letter indicating the application. C1 & C2 Corvettes - Carb date code - Can somebody explain to me how the date code works on a 1964 Holley carb for a 327365 HP ? Thanks, Matt The date code will be right below it. Unlock the secrets of Holley date codes to ensure accurate carburetor rebuilds. Now there is more to these carbs than just these numbers, as there are numbered metering blocks, and baseplates with many different applications. Holley carburetors with -'n' numbers generally fall into decade categories; -2 for the 60s, -3 for the 70s, -4 for the 80s, and -5 for the 90s. I know that the first 3 digits stand for the number of days of the year ,130, making it around May 8, but the last digit #2, What decade would it be, 1982, 92 or 02? Holley used the four digit code after 1973 , so it Trying to figure out the date code on my Holley and ran across this site. I just picked up a 1968 dated 163 intake, thinking of pairing these up if the dates are both 1968. com Decoding Ford Carburetor date codes Autolite carburetor use a 3 or 4 digit date code system. They seem to have the right part #'s and list #'s, but the four digit date code seems wrong. Apr 26, 1999 · Re: Holley Carb Date Codes Hi Everett: I believe that the service replacements are Julian dated, and that originals are dated as Gary describes from the judging manual. The lady running the sale said her I need help in IDing the four digit date code 1302 of a 4160 holley carb. Mar 2, 2019 · Thank you Dan for the excellent explanation of Holley date codes. C3 General - Holley carb date of manufacture - I have just purchased a used Holley carb, list# 1850-3, date code 0069. The wonderful "which decade is it from?" Holley list #1850-3 with a date code of 0968. Last # on my 4 diget date code is 3. Their modular design, inclorporating a metering block for the jets and power vales, made it easy for anyone to rebuild their carburetor. R. Invaluable information about the model, CFM, factory jets, power-valve size, and air bleeds can be discovered just by knowing your list number. As I recall the date code is 3 digits, ABC, where A is the last digit of the year, B is Not what was on factory Chrysler Holley 4bbl amd 6 bbl carbs. The car is build date April 8 1968 Fortunately, when the original owner replaced the carb (The current carb on the car is a Holley 3310-2), they retained the original metal tag, which has a 7L8 (November 8, 1967) stamp. The Holley model number is present along with the auto maker part number, if factory-issued, a date and application code. - Guys, I have looked on the web to try to read the date code on a 2818-1 carb that I bought for my 65 L79 engine, the numbers below the 2818-1 are 0619 some of the information I have seen give the front number as the year & others give the last number as Deciphering Ford Parts Date Codes Want to link to this site? Please save this banner to your hard drive to place on your webpage. If I am reading this correctly, the carb would have been produced in 1966, the 6th month and the 3rd week. If I am reading I have a Holley 4160. Here are all the numbers on the choke horn: 3923289-DZ LIST-4053 0523 Correct or service replacement? 9510 is an internal part number for carburetor. All Holleys through 1972 had 3-digit date codes (year, month, week of the month); all Holleys after 1972 had 4-digit Julian date codes (day of the year, year). - The first three digits are the day of the year. April of which decade 88, 98, 08. Take care not to mistake the casting number and the list number – the casting numbers will be raised (not stamped) and alphanumeric. Decoding them is as follows: Apr 20, 2011 · The date codes on factory Holley carbs were 3-digits up to 1973, and 4 digits thereafter. Most would likely be from the 70s or 80s, supposedly you can call Holley tech line and somebody can tell you what year they stopped making a particular number. The correct link to use is http://www. Moving on, 0798 is our date code; Holley used a three digit up to 1973, after which they moved to the four digit code you see here. I checked all of my books and only the 67 corvette is listed using this number, does anyone have info. 5K views 6 replies 5 participants last post by srq34231 Apr 28, 2012 M I've got a old 3310 no dash 780 holley, EH code but the date code is 8 B 3 so how do u figure out the date? 8 = 1968? B = ??? 3 = 3rd week of B? thanks. vacuum secondary differences, and sketchy mods you need to avoid. I know the date is the 65th day of a decade ending in "9" but what decade? 1979, 1989, 1999, etc. Jan 15, 2014 · How do i decode the date on Holley carbs with 4 digits? Is this correct for Holley carbs with a 3 digit date code? First digit is the last number of the year, second digit is the month and the third digit is the week of the month But when looking at the 4 digit carb with a 1513 date on the picture is the last digit 3=1963 and day 151 in 1963? Aug 20, 2009 · If your Holley carb has a FOUR digit date codethat code was ONLY used for aftermarket carbs The Holley 4-digit date code is based on the Julian callender. I was on a FB page on Holley carbs. Jeff Holley® Carburetor Date Codes Part I O. Unfortunately, the original Holley 4053 went away way back in 1974 (or so). this tag is typical of an Autolite 4300 carburetor, C8ZF-A with date code 8B13. 6, 1969, 1979, 1989, 1999, or 2009? Factory Correct Resto - Holley Carb Date Code Question - My reference book is out on loan to a friend. The build date of the car is G03third week of Feb. ? Have a guy trying to sell me an original Holley DZ carb but I'm not sure the date code is correct. Jan 9, 2020 · It would be best to speak with one of Holley's Technical Service Representatives at 1-888-258-3835 for their recommendation on what would work best. The date code will be right below it. If memory serves me correctly Holley carbs have a LIST number, a GM part number, a date code, and maybe one other number (?). My Holley carburetor horn is stamped with part number 3367 and the date code is 663. 5K views 5 replies 4 participants last post by Kurt S Dec 15, 2014 H Last summer I picked-up a box of 8 Holley carbs at an estate sale ($30) 6 of which were in various stages of disassembly, with 4 extra fuel bowls, but 3 missing throttle blades. Production dates could be etched, stamped (ink or steel punch type) on the Help with decoding this Holley Carb 3 digit date code Jump to Latest 5. My Ol' Z has a 09C Build Date (September 19th, 1969 to be precise). But the date codes are 943 and 984. date stamps came up and I made the claim that they were 4 digits, 3 for the day and last for year. CRG explains how to interpret 3 digits, so this must be a later production carb. 025 0-1849 4160 550 37-119 37-933 6-506 122-62 N/S N/S N/S 125-85 . The Holley code tells when it was actually cast. GM Carburetor Date Codes (Holley) Holley carburetors used on GM vehicles had evolving date code systems: A friend of mine has a Holley 3997788 6238-1. I explore the main differences of the long production run of the Lis Holley Carburetor Date Code Correct? My car was born on Tuesday June 14th 1966 according to the Shipping Data Report. Carburetor Date Codes O. It is I am trying to find a date correct Holley carb for my 1966 390 car. Factory Correct Resto - Tri-Power Carb Date Codes - I am currently going over a 1967 427/435 and I'm having a hellava time figurung out the date codes on the carbs. Holley carburetors: Identification, mechanical vs. Is there any information out there how close the Holley date codes relate to the vehicle build date. AEM Software Downloads Carburetors Diablosport Engine Swaps Exhaust Fuel Injection Fuel Pumps Hans Devices Hilborn Ignition Manifolds Nitrous Oxide Systems Plumbing For 1963 vehicles specifically, GM used a unique system with a letter for the month and numbers 1-6 representing the week within that month. The second line ( or first, if it is not a GM or Ford Carb) will have list followed by a four digit number. The third line will be a date code, with a series of 3 or four numbers and letters. C1 & C2 Corvettes - How do I read date code on Holley 2818-1. There is also a date code. 5 are single pump 4-bbls, and I'm sure the 3 2-bbls are mopar six-pack carbs. - The fourth digit is the LAST year of the DECADE. All factory 6bbl carbs have 4 digit dates on them 1968-1971. Holley 4150. Holley Carb Date Code Did you read the link Darrell posted? Quote 1967 through 1969 Holley The identification number and the date of manufacture are stamped into the forward vertical surface of the air horn. The numbers are LIST 3310-3 and the date code is 0659. C3AE-9510-A simply means this carb was designed 1963 and was the first design (-A). I have the 350 hp engine. The date code is a four digit code (1354) so it's a replacement carb from what I've researched and the "4" is the year of manufacture. The numbers show it's a 1972 Z/28 with auto trans carb. C1 & C2 Corvettes - Help with Holley Date Code - My Holley 2818-1 Carb on my 65/365 has the following numbers: 3849804 List 2818-1 3537 So I knew when I bought the car that carb was a replacement. Guys, I am looking for a correct date coded Holley 4088 for the GTE. Please understand as there is confusion here. C1 & C2 Corvettes - 66 Vette carb date codes - Please explain the date codes on my Holley carb. M. Holley Carburetor Numerical Listing The original 1960's and early 1970's GM Holleys had a 3-digit date code system where the first character represented the year of the decade ("6" for 1966, "7" for 1967, "8" for 1968, "9" for 1969, etc. Factory installed Chrysler Holley date codes were 4 digits for 1967 and up. This is an engineering code. There's no way to determine the decade for the 4th digit of a 4-digit date-coded Holley, except that it's always 1972 or later; that's the year they started using the 4-digit date code. It is common that a 1963 design has a casting date of 1968. 6bbl carbs are their own animal and are not pertinent to this conversation. The CARBURETOR ASM. Could be 1978, 1988, 1998 etc. 0-1848-1 4160 465 37-119 37-933 6-506 122-57 N/S N/S 34R9716-3 125-85 . day of 1969, or maybe 79, or maybe even 89. The three digit date code is broken down with the first number being the year of manufacture, the second number (or letter) being the month of manufacture (1 through 0 for January through C1 & C2 Corvettes - 3247 Date Code Decipher Help - Could someone help me decipher the date code of the 3247 Holley which is installed on my (Sept 65 build) 66 427/450 L-72. ). Is there a way to tell what year? 74? 84? etc. Step 2 Locate the Holley model number. on other Chevrolet applications using these numbers?. Series 4150 and 4160 Holley 4150s and 4160s are built on similar platforms with a few distinct differences. If you come across a vehicle with a Holley carb that has the feel and power you are looking for, it can be helpful to know how to ID Holley carb types so you can get the right one. After determining the carburetor is a Holley, look for the code numbers, usually located on the side of the air horn. Bounght my 83310-1 in 2003 even though I would also like to know more about date codes on 4150/4160s. (a littel math involvedsorry) 1-365 except for "leap-year1-366. Also, any Decoding Ford Carburetor date codes Autolite carburetor use a 3 or 4 digit date code system. Locate the lone four-digit code. models, O. 025 0-1850-2 4160 600 37-119 That's a replacement carb (4 digit date code) which indicates 284th day of that year ending with 8. I. You can always call Holley’s tech hotline and ask a Holley technician to help decipher the date code, but remember, this number doesn’t have any particular use for you, so you really don’t need to worry about it. The carburetor is correct as far as the 3874898 and the list 3139 stampings, but the date code, or at least what I think is the date code is stamped very lightly as "122". But otherwise I don't know of a way to identify which decade for sure with one of these 4-digit Hi Everyone, I am trying to figure out the date code on for the Holley carburetor on my 66 Chevelle 396/325hp. The 3 digit format was year-month-week, and the 4 digits were julian date (day 001 to 365 of the year) and last digit of year (doesn't clarify which decade though). Hence a 3310-4 would probably have a date code in the 1980s. xdgfxl, 7vpoeq, ti2g, ksglc, xtw6, 8upss, jt4rh, 9tv9l, xkl4bj, mgxh,