Holley date codes

date code that will contain no more than four (4) digits. See Figure 1 below. Figure 1 DISASSEMBLY: Rest the carburetor on a repair stand to avoid damage to the throttle plates during the renew procedures. Use the exploded view, for the model of carburetor you have, as a guide and follow the numerical sequence in general to disassemble unit far

13 May 2013 ... Did Ford use Holley, Carter and Autolite carbs on these engines or just the Autolite 1100? ... the only #'s on the hood are the date codes.The carb was installed at the St Louis plant so a typical correct carb would be dated about 2-4 weeks prior to the cars assembly date. Holley date codes went to 4 digit code around 1970 Last edited by Donald #31176; 03-07-2009 at 12:25 PM .four digit date code is one. Holley went to Julian dates composed of four numbers: the first 3 digits are the day of the year, the fourth digit is the last digit of the year. For instance, a date code of 0311 would mean that it was built on the 31st day of the year (Jan - uary 31st) and the year is either 1971, 1981 or 1991. A date code ofAs for reading date codes on Holley carbs, there are 3 digit dates and 4 digit dates. The 3 digit dates lasted until about 1973. The first digit is the year. 6 = 1966, 0 = 1970. The second digit is the month. 2 = February, 9 = September, 0 (for 10) = October. The last two months used letters, A = November, B = December. Overview Of The Holley 4150 Vacuum Secondary Carburetor. Overview of a Holley 4150 mechanical secondary carburetor, Double Pumper. by caschnd1 » Tue Jul 26, 2005 3:00 pm. If you figure out what type of transmission case you have (what year ranges it was manufactured) you will be able to determine if J9 means Oct-1939, Oct-1949, or Oct-1959. You many need to look at the kicker cover for clues too, but that only helps if the kicker cover is the original one.

13. Updated: May 1, 2024. We searched for the latest codes! Recommended Videos. Haze Piece codes. A Piece Codes. NEXTCODEAT400KLIKES —Redeem for 3 Race Spins,15 Gems, and a Stat Refund (New) VALENTINES2024 —Redeem for 3 Race Spins and 30min x2 EXP. LETSGO375KHAZE —Redeem for 3 Race Spins, 15 Gems, and a Stat Refund.This carburetor was made by Holley , The Holley Brothers Company was started in 1905 in Detroit Michigan then became the Holley Carburetor Co . It is a H4-4150 . This carburetor has a part number of R4555 LIST 4555 and used on 70 LT1 780 cfm . Check here for specific Muscle car Info. Referenced by ; Holley R4555 or LIST 4555.Decoding Ford Carburetor date codes . Autolite carburetor use a 3 or 4 digit date code system. 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. this tag is typical of an Autolite 4300 carburetor, C8ZF-A with date code 8B13.Holley Comprehensive Plan. Code Enforcement Complaint Form . Points of Interest . Fee Schedule (DOCX - 26 KB) Current Fee Updates General Building Permit Requirements (PDF - 153 KB) ... Village of Holley :: 1 Wright Street :: Holley, NY 14470 :: Phone: 5856386367 :: Fax: 585-638-7540 ...Holley 3837 Chevelle SS Carburetor 1967 396 date code 6A3. The number above that in the picture is the General Motors id number 3908957-EJ. This Carburetor has the original Holley color. All of the steel hardware has the original factory plating. Very hard to find with this late 1966 date code for a 1967 car.Shoppers save an average of 13.6% on purchases with coupons at holley.com, with today's biggest discount being 20% off your purchase. Our most recent Holley promo code was added on Apr 23, 2024. On average, we find a new Holley coupon code every 60 days. Over the past year, we've found an average of 5.0 discount codes per month for Holley. Med.Rise INTAKE. Aftermarket replacement. Holley list this carb as "1968 Shelby-American 289 Engine". Ford and Mustang Holley 4150 carburetor. Holley casting numbers decode and identification. Correct list numbers and correct date codes for all holley carburetors. Ford Mustang Galaxie Fairlane Torino Mercury Cougar Cyclone Boss Applications.

This is for One Good Used Original Holley Carburetor PN 3810 with GM# 3906631-DA, correct for the Chevrolet Corvette produced in 1967 with 327 CID and 300 or 350 HP. The date code of 8 B 3, (3rd Week of February, 1968) would suggest this is a service dated carb. It is rated at 585 CFM and has a vacuum secondary and choke that operates off of …The 4-digit date code indicates that it was NOT a factory GM installed carburetor but is an aftermarket over the counter replacement carb. ... I belive Holley 3310, 3310-1 are 780 CFM VS with secondary meterig block and 3310- 2 on up are 750 CFM VS with secondary metering plate.The Holley Carburetor date code is 881. Additional information. Weight: 14 lbs: Dimensions: 12 × 12 × 8 in: Related products. 1971 HOLLEY CARBURETOR 454 LS6 LS7 $ 1,199.00; HOLLEY LIST 3245 L 79 NOVA $ 1,599.00; Holley Ford Carburetor 4160 450cfm $ 500.00; Product Search. Search.date: 11-6-13 needle & seat cross reference if your old n&s is stamped with you will use size style available separately as # contained in kit # "h" .097 steel 6-500-2 "d" .097 steel 6-501-2 "f" .120 steel 6-502-2 "h" .110 viton adj. 6-504 85r8515k & 85r8515k-2Unlock the full potential of your Terminator X and Terminator X Max ECU with our free PC software download. Take control of your Fuel Tables, Timing Tables, Idle Control, DBW Control, Boost and Nitrous Control, and much more. Through the advanced tables, you also can add custom sensors such as flex fuel or nitrous bottle pressure. Also included; real-time strip chart, and datalogging/datalog ...

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C1 & C2 Corvettes - Holley 3811 date code - Any wisdom on my carb. It is a 3811 / 4160 with a date code of 0503. Everything that I can find states that this Carb was only used on the 1967 390 HP 427. Does 05 mean 1965, O mean October and 3 mean third week? Or or is this a newly issued Carb by Holley? Some sources show...How to download Datalink II software from Holley.com; Data recording. Share How to download Datalink II software from Holley.com. Cameron Ferre. 04/29/2019. 10 min read ... Join the Holley Family. Stay up to date with the latest releases, events, promotions and more. Sign Up.Holley carburetor numbers are referred to as 'List' numbers. They are usually stamped on the carburetor body and preceded by the word 'LIST' or the letter 'R'. Numbers that are preceded by '6R' or other combinations of numbers and the letter 'R' are casting numbers referring to a particular part of the carburetor and cannot be used to identify ...And yes, the date codes on Holley carburetors are decoded as follows: first number is the year (in this case 1969), second number is the month (in this case 4 = April), and the third number is the week it was produced (in this case 2 = second week).Best Holley promo code available is : 23WINTER. Save on every purchase with 25000 + shopping stores using our discount codes, coupons, deals & offers. Auto Replacement Parts Fuel Injection Car Parts. Save Big with HOLLEY Discounts. Save Up to 50% at Holley. ... Always Up-to-Date: Finding a great deal is only half the battle. You need to …

From Holley date codes. First digit is the last number of the year. Second digit is the month. Third digit is the week of the month. Your date code "123" could be a 1961 or '71 carb, third week of Feb. The only mention I see of that carb number is for use on a 1964-'65 Corvette w/a 327.362. Location. Pacific NW USA. Four (4) pictures posted below... So this weekend I started the rebuild on my 3310-1 780cfm carburetor. I noticed it has a cracked baseplate on the primary side. Holley sells replacement part #112-9 for a premium, $292.95. At that price, might as well buy an all new carb.model 885 - number on plate, mounted on air horn body. number may also be found on tag as shown here model 1909 part number stamped on throttle body flange orHolley date codes Supercar/Musclecar Discussion. Join us now! Yenko.net The Supercar Registry > General Discussion > Supercar/Musclecar Discussion: Holley date codes User Name: Remember Me? Password: Register: Album Gallery: Thread Gallery: FAQ: Community: Calendar: Become a Paid Member: Today's Posts ... Overview Of The Holley 4150 Vacuum Secondary Carburetor. Overview of a Holley 4150 mechanical secondary carburetor, Double Pumper. Bulova date codes: 1924 - 1949 Between 1924 and 1949 Bulova used a date code symbol on their watch movements to indicate the year that movement was assembled. Between the same years many Bulova watch cases also had a serial number that started with the number corresponding to the year of production. The following table will help you date your vintage Bulova watch movement.item 3 Vintage Holley Economaster 450 CFM 4 BBL CARBURETOR 7455 Date code 0917 GM Chevy Vintage Holley Economaster 450 CFM 4 BBL CARBURETOR 7455 Date code 0917 GM Chevy. $119.99 +$10.00 shipping. item 4 Carter AFB 4758 4761 400/500 CFM 2X4 Dual Quad Carburetors 4758S 4761S S Carter AFB 4758 4761 400/500 CFM 2X4 Dual Quad Carburetors 4758S 4761S S.Holley started using four digit date codes in 1973. So I second what Velox said about the year of manufacture being 1978, 1988, etc. Holley has made special production runs of various carburetors over the years. I have an undated List 3810 that was purchased new in 2006. I talked to a couple of Holley reps back in 2010 trying to find out …The stamped 'code' is in the format 'ccc-nnne' where ccc is a one, two, or three digit code representing the company for which the carburetor was produced (ie 2=Ford, 4=Chrysler, 7=Buick, etc.); nnn is a one, two, or three digit number representing the next sequential number of carburetor sold to the company in 'ccc'; and e is a ...released before the next EFI software release will be put on the Holley.com. Software Feature Updates: • NA . Software Bug Fixes/Updates: • NA . Version 6.0 Build 320 - Initial Release 08/14/2023 Matching Firmware Version - HEFI_06003200.eep (6.0 Build 320) Who should update

Topic: Holley date codes: Fastymz Moderator . Posts: 20708 From: Reno Nv USA M&M#1240 Registered: Apr 2001: posted 06-14-2004 03:21 PM Does anyone know how to read Holleys date codes on the carbs ?-----SCOOP. oddly obsessed with big scoops on little Mustangs. 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. ...

Pre-72 Holley date codes. Jump to Latest Follow 1K views 2 replies 3 participants last post by RixLS6 Jan 31, 2007. C. CT Mark Discussion starter 1331 posts · Joined 2002 Add to quote; Only show this user #1 · Jan 31, 2007. Just trying to get confirmation on something. The ...2300-EG Diagram. 2380-EG Diagram. Holley 5200 5210 5220 6500 6510 6520. Parts Page. Diagram. Holley 2280 6280. Parts Page. Diagram. Holley 4150 4160 4165 4175 4180 4190.Do you think your partner may have a compulsive sexual behavior disorder (CSBD)? In this article, we detail what CSBD is, how it is treated, and advice on how to cope. Dating someo...Holley uses the jullien date code, 1908 corresponds to the 190th day of a year ending in 8. After every major design change Holley changes the number after the …NOMENCLATURE - MODEL 2010 Ref. No. Description Ref. No. Description 1 Choke Lever and Swivel AssemblyFast Idle Cam Plate Screw 2 3 Fast Idle Cam SpringFast Idle Cam Plate 4 5 Fast Idle Cam 6 Choke Rod Retainer 7 Choke Lever Back-up Plate 8 Choke Rod Lever Molded 9 Choke Spring Retainer WasherChoke Lever Spring …Jan 27, 2019 ... I sold a similar C9AF 9510-U 4609 carburetor on eBay in November that had a 1974 date code like yours. It was complete, decent looking, in need ...Ken -- Thanks for posting the engine date decode sheet for the 430 engine. I'm trying to document the date code & part numbers for a Holley that The Old Cars Manual Project lists as being original for the 430 engine. Numbers stamped into the choke horn as follows: 5752426 List 1850 062The Holley Illustrated Parts & Specs Manual states thus: LIST-3418-1A (1AAS) IS an OEM Holley carb, listed for 1966/1967 Corvette 427 engine, 425 horsepower, looks like the real deal. ... You would need to have a three digit date code starting with 6 or 7 for that to be an assembly line carb.This one's date code is 764, which translates to it being manufactured in the sixth month (June), 4th week of 1967. (It doesn't have the center main body that "re-issued" carbs generally have and the date code is far earlier) I don't know that Holley stamped past date codes that early onto re-issue carburetor air horns either.

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Middle Gasket: New Carb: 0-1850. Base Gasket: G1407BL. Core: Search eBay. Check the Holley Parts Page for more parts. We have many parts that may not be listed Call 253-833-4106.Going In-Depth With Holley's Tri-Power 3x2 Intake And Carburetor Set. tech. tri-power. SBC. small-block Chevy. 2-Barrel. 3x2. Ronny and the Daytonas immortalized the then-new Pontiac's GTO with the (appropriately titled) song "Little GTO". The single hit number 4 on the Billboard Hot 100 chart on the 26th of September, 1964 and as a ...I recently bought a used MSD 8546 Pro-Billet distributor. It has a C7 stamped in the body. Is there a way to find out how old it is from this stamping? It also has aluminum spacers that hold the cap down. Which I don't see on the newer version. Thanks, Shane. Med.Rise INTAKE. Aftermarket replacement. Holley list this carb as "1968 Shelby-American 289 Engine". Ford and Mustang Holley 4150 carburetor. Holley casting numbers decode and identification. Correct list numbers and correct date codes for all holley carburetors. Ford Mustang Galaxie Fairlane Torino Mercury Cougar Cyclone Boss Applications. How to Tune Holley Terminator X for Beginners - Intro to Data Logging- In this video we go over the basic functions with in the data logging portion of the ...Holley Super Sniper EFI 2x4™ - Classic Gold. $1,784.97. save $1,049.03. Part# 550-533. Add To Cart.from Parry Sound Ontario Canada. 1963 8 406 Holley 4160 2652 1 C3AE-C 998. Although the build date of your carb is 1964 "probably over counter Ford replacement" I would sell it to a collector and buy a "NEW" Holley with the cash! Holley date codes that old use the first number as the year "4",second number as the month "September" and the last ...The Carburetor Doctor has a full line of Holley carburetor rebuild kits, floats, choke thermostats, parts and service manuals for 1, 2, 3 and 4 barrel Holley carburetors from 1934 to today. We have carburetor parts for Holley automotive, marine, industrial and agricultural applications. Our kits are made in the USA and feature the highest ...Place the new carburetor flange gasket, provided with the carburetor, in the proper position on the intake manifold. Place the carburetor on top of the flange gasket on the manifold. Install the hold down nuts and snug down progressively in a "crisscross" pattern (60-80 in./lbs.), as shown in Figure 5. Figure 5. ….

The top of the stamp shows the GM part number 3886101E1, the midportion is the Holley list number, 3247. The DATE CODE which you are asking about is the bottom area, on mine it is 612. If yours has a 4 digit stamp there, it is not original, it is a service replacement built later. The 3 digit code as in my 1966 Holley identifies 6 (the year ...Buy Holley HOL 0-4412S 0-4412S Model 2300 500 CFM 2-Barrel Manual Choke New Carburetor ... shipping from Amazon.ca was painless in fact it arrived 4 days earlier than the original estimate arrival date. i love my truck now..... until the wifey comes home from work then she is the special one..... Read more. Report. See more reviews. Top.C1 & C2 Corvettes - Holley 3810 date codes????? - I have two Holley carbs. both numbered 3906631-DA list 3810. But the date codes are 943 and 984. I checked all of my books and only the 67 corvette is listed using this number, does anyone have info. on other Chevrolet applications using these numbers?.2702 posts · Joined 2009. #2 · Feb 23, 2012. carb date 0502. according to "holley carb date code". 050 is feb. 2= 1962,, 1972. 1982, 1992. This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.ZIP Code 14470 is located in the city of Holley, New York and covers 65.075 square miles of land area. ZIP Codes cross county lines, and 14470 is primarily assigned to Orleans County. However, is also covers mailboxes located in Monroe County. According to the 2020 U.S. Census, there are 7,648 people in 3,255 households.jimne1 Discussion starter. 3 posts · Joined 2009. #1 · Nov 16, 2009. I'm trying to understand the date code on a 3310-1 Holley. All I know is it is a true 780 CFM with downleg boosters and it came off of a GM car. Byeond that I'm stumped. The date code stamped beneath the 3301-1 is shown as 241. I have yet to find any reference that would ...I found an original Holley 4150 C7OF-9510-B list 3794 for my '67 Cougar GT 390 4V C6. The date code is 605, which translates to 1966, October, 5th week...Ok, I have 2 carbs, holleys, and under the list #'s is as follows: first carb: 1374. sec carb: 2502. These should be the date codes, but im used to seeing 3 digits. So if you can help, I would be happy. Thanks. 1374 = 137th day, year ending in 4, like 74, 84, 94. 2502 = 250th day, year ending in 2, like 82, 92 etc. Holley date codes, from Parry Sound Ontario Canada. 1963 8 406 Holley 4160 2652 1 C3AE-C 998. Although the build date of your carb is 1964 "probably over counter Ford replacement" I would sell it to a collector and buy a "NEW" Holley with the cash! Holley date codes that old use the first number as the year "4",second number as the month "September" and the last ..., Holley List #9188. Carburator is NOS, like new condition. Never bolted to an engine as far as I know. Holley Mfg Date Code 2350. Designed for Chevrolet 396 CID / 425HP., Early Holley carbs used a three digit date, year, month, week. 782 would be a Holley made in 1967 (7), August (8), the second week (2). Later Holley's use four digits, three digit for the day of the year, and a forth for the year. 0131 is a Holley assembled on the 13th day of 1971. Some parts use a simple Julian date., Decoding Ford Carburetor date codes . Autolite carburetor use a 3 or 4 digit date code system. 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. this tag is typical of an Autolite 4300 carburetor, C8ZF-A with date code 8B13. , The guy on the carb. forum explained the code like this- year-month-week. the year part is easy the month part is where it gets tricky. Jan.to Oct. is 1 thru 0 and Nov.-Dec. is A and B . A date code of 6B2 would be 1966-Dec.-2nd week. The complete # for this carb. is C3AF-9510-BJ List-2805 he thinks this could be from A 67 GT500 with 427 ,also ..., C3 General - no carburetor date code - Hello, The 3 carburetors on my car have the Chevrolet number and the List number, but no date code stamping. ... The original carbs have the 3 digit date code, and the replacement new carbs i bought from Holley do not have them- although there are vendors that will stamp them for you for about $100.00 each., Doesn't seem to indicate a use for the chevelle. But that would seem logical to be used in both the chevelle and the passenger. Indicates list # 3268 used for 66 chevelle on AT with 325HP. 4th week of June doesn't seem to early for holley to put a carb together , send it out and have it on a shelf, then install it in a car., Please be aware that this is a community forum. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. ... Holley can not guarantee an answer or timing on an answer. MSD 85551 date code W11. Is this covered for rust. it failed. Collapse. X. Collapse ..., Topic: Holley Date Codes: FZ-28's Member : posted March 06, 2004 05:44 PM I have read conflicting information on what date codes were used for original and replacement Holley carbs during the 70's. I just purchased a carb that the seller stated up front is a factory replacement carb and not to be confused with a correct date coded carb that can ..., The top of the stamp shows the GM part number 3886101E1, the midportion is the Holley list number, 3247. The DATE CODE which you are asking about is the bottom area, on mine it is 612. If yours has a 4 digit stamp there, it is not original, it is a service replacement built later. The 3 digit code as in my 1966 Holley identifies 6 (the year ..., Date codesMax power for holley 12-1800 Holley carburetor 3139-1 4 bbl 3874898 er date code 1903 chevelle 396Holley 3139-1 carburetor 3874898 -er ..date code 142. Vitamins without iron, healthy snacks for weight loss, holley carb cfmHolley 3140 1 4 bbl 3868864 es date code 594 Holley 2300, 2300g, 2300mg exploded diagramsPhscollectorcarworld ..., 2old2fast. 2893 posts · Joined 2009. #5 · Oct 20, 2010. Thier will be 2 numbers on the air horn normally, 1 is a date code the other is a LIST number,date code is useless 'cause it doesn't say which decade, list can be referenced through various sources, post it and I'll bet someone will have an answer for you. dave., For tech support questions. ask our experts at 1-866-404-6141. Shop the official site of DiabloSport's industry-leading automotive performance tuners & programmers at Holley.com!, From Holley date codes. First digit is the last number of the year. Second digit is the month. Third digit is the week of the month. Your date code "123" could be a 1961 or '71 carb, third week of Feb. The only mention I see of that carb number is for use on a 1964-'65 Corvette w/a 327., This is for One Good Used Original Holley Carburetor PN 3810 with GM# 3906631-DA, correct for the Chevrolet Corvette produced in 1967 with 327 CID and 300 or 350 HP. The date code of 8 B 3, (3rd Week of February, 1968) would suggest this is a service dated carb. It is rated at 585 CFM and has a vacuum secondary and choke that operates off of …, Note different throttle-linkage and presence of GM PN, Holley list number, and date code on airhorn. Photo by eBay. Advertisement. See All 111 Photos., 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. Decoding them is as follows: Three Digit - Example 763 > 7 - Year (1967) , 6 - Month (June) , 3 - (Third Week), The Holley manufacturing date code format is Year, month, week. from my research I discovered the year date is the actual year Holley made the carb. This is based and verified on the very first carbs being produced. The Holley 4053 part number 3923289-DZ began production for the 1968 Z/28, L78, L89, & the L72., The Holley EFI 6.86" Pro Dash is customizable with a variety of gauge and indicator screens that can be ... GPS lock and to keep the current date and time. "Clean" = a connection that does not share the same connections as "dirty" sources such as coils, a starter, solenoids, fans, etc., that have a lot of electrical noise or solenoid ..., Dating with severe mental illness: Can it work? Tune in as Gabe and Lisa share how bipolar affected their relationship. Can a relationship work when one person has severe mental il..., Holley EFI 686in Pro Dash. Pro Dash CAN IO Setup Overview. Contains firmware update information for both 12.3" and 6.86" Holley EFI Pro Dash products. Updated - 2021-10-12. Pro Dash Firmware V6 Build 260. Pro Dash Firmware for Sniper, Terminator X, and Holley EFI for 12.3" and 6.86" Dashses. Get help from other Gear Heads!, Find many great new & used options and get the best deals for GM HOLLEY LIST 6773 CARBURETOR DATE CODE 3176 at the best online prices at eBay! Free shipping for many products!, The List number for a Model 2010, 2300, 4010, 4011, 4150, 4160, 4165, or 4175 carburetor can be found on the right side of choke air horn. The List number for the 4500 can be found on the top of the main body casting. Below the list number is a date code that will contain no more than four (4) digits. See Figures below., Description. Service Holley 4053 CARBURETOR date code 892. This is a Camaro carburetor. The number above that in the picture is the General Motors id number 3923289-DZ. Restored to its original Holley color, all of the steel hardware has been re-plated to the original finish. Carburetor retains the factory Holley calibration., 13 May 2013 ... Did Ford use Holley, Carter and Autolite carbs on these engines or just the Autolite 1100? ... the only #'s on the hood are the date codes., Holley Carburetors 4 digit Numeric date codes. This sample casting number from a 1970 carburetor with date code 0995 . 09 9 5. Day of the year . 099 = 99th day of the year . 1 to 365 099 5. Year . 5 =5th year. 1975, 1985 or 1995 : More then likely this carburetor was built on the 99th day of 1975 ., Sniper EFI Selector /. Holley 2300. The Holley 2300 carburetor was widely used in the 60s and 70s across several manufacturers. While 2-barrels were traditionally found under the hood of more economical cars, the Sniper 2300 can support up to 350 horsepower and 14.7 psi of boost while the Super Sniper 2300 can handle up to 650 hp and 21.5 psi ..., Expiration dates on food are tricky. They mean different things on different foods. Understanding the difference could save you money. Keep this information handy so you don’t thro..., 01-14-2015, 09:52 PM. There are no visual indicators without a laptop or a Holley Digital Dash. If certain sensors failed it would just run like crap, others it may not run at all, and some would make little to no difference if the tune was spot on. You can create a warning output that can be triggered by numerous things., 3. Match an all-numerical code with a "month, day, year" sequence. If the code you're reading is comprised of 6 digits, it most likely is a month-day-year code. Read these codes as MMDDYY, where "MM" refers to the month, "DD" refers to the date, and "YY" refers to the year., Although it is common courtesy to cash or deposit a personal check as soon as possible, sometimes checks are forgotten. However, it is just a matter of time before that personal ch..., Find many great new & used options and get the best deals for Holley Parts Carburetor 3310-1 6R2762 Date Code 2772 No Reserve at the best online prices at eBay! Free shipping for many products!, Service parts will have four digit date codes Thanks, John . Logged Captain John Wykoff Destin Fire: October 31, 2015 at 0700--Officially Retired. pjbizjak. ... Holley date coding for 1973 - 1975 had a 4 digit code number!!!!! That would make it a service replacment for a 1969. Logged Captain John Wykoff ...