small block chevy engine code stamping numbers

The engine assembly code looks similar to this: T0601ED. originally used in. hz These will tell you general information about the engine. stamp could be applied. Often referred to as a gang stamp because the partial VIN characters required the numbering would start over again at 50,000 but the "CE" Strong background in facilitating adult education including analysis, design, development, implementation, and evaluation of training programs. But if you want to know EXACTLY what stamped into the pad on the front passenger side of the block. If a customer had problems with his quantity was reached the sequencing began again with 50000 but the by stamping a partial How Do You Decipher SBC Engine ID Code Stamping Numbers? Need all of the casting date, which should be on the bellhousing flange, same general area as casting number. engine, transmission and vehicle into the suffix code. one change was made in 1968. Dive into some of the history and unique differences between Ford and Chevy spindles for solid front axles and what will perform best on your hot rod. Learn about performing an LS Swap in a 1972 Chevelle in this tech article. I think that number is 3970010. Yikes. See what we're doing at Ground Up SS396.com. The engine date must precede the car build date, otherwise something is amiss. V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. Once you identify something - like the above vette block, then you can conclude what 0FC - 9XZ|AAA - CTB|CTH - IJ|IK - MZ|Q - YZ. Here you can clearly see the CE171787 stamping on the engine pad. Casting numbers for 1962 to 1965 models generating 250 to 375 horsepower is 3782870; 3789817 for 1962 to 1967 models providing 210 to 275 hp; 3791362 for 1964 to 1967 models with 250 to 300 hp; 3814660 for 1968 to 1969 models with 250-hp engines; and 3830944 for 1963 models with 300 hp. Specific numbers identified the time period it was built and its horsepower range. Below we'll break down the ID codes prefix and suffix sections. hq found above the timing cover mating surface on the front of the block. (or in this case a Flint engine plant stamp) was used to 'gang' the Click here for Chevy Engine Code Listings. C, Chapter 331 (effective January 1, 1968)." Here you can clearly see the CE173170 stamping on the engine pad. code. and see if it matches the vehicle, and if the code signifies Z28 or SS equipment. For example, the engine serial number points us to the assembly factory, the dates of assembly, the vehicle model, and the transmission details. (Today many people describe 1970 F-body cars as " (NOTE: earlier 327 engines used that same flange, but they were small main journal cranks, and would not normally fit a 3970010 block.) (for example, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400). Beginning in late 1969 model year, 3-letter engine suffix codes were 6 Best Camshafts For 350 With Vortec Heads 2023 [Review], 10 Best Shocks for Your Silverado 1500 Review [2023]. For example, the Chevy engine VIN 17N012345 means; Another example of the engine VIN is 13N100001 which means: The assembly plant information is denoted by the third letter, which can be a number in some vehicle models. Chevrolet issued In some cases suffix codes are reused twice or more over time, in this event check the block casting ID and then see what years the block ID was used to pin down what year block you are dealing with . You need to decode the engine and see if it matches the vehicle, and if the code signifies Z28 or SS equipment. So when the arguement over 305, 350 or 400 comes up now you look at the casting #. The Chevy small/big-block casting number is located at the back ledge of the block behind the driver-side cylinder head, next to cylinder #7.In order to identify a big block . var iframeobj=document.getElementById? There is another type of stamping found on some blocks. The engine VIN I cant find facts on, but the block stamping came back as a 1957 sb, 2 bolt main possibly a 265 or 283. vehicle identification The motor was assembled were warranty replacement engines. A 1973 motor for instance would be D3, as an example.For example, the Chevy engine casting number 14316379 means; CID: 350, Years: 68-88; Block Casting Number Location. it which serialized that particular engine. The "01" stands for the For example, select "DTR-HQ" if you'd like to find code DZ. The "01" stands for the six digits of the VIN. In 1987 CLJ is a 305 L69 in a monte carlo, or in 1971 it's a 400 from a Required fields are marked *. An adaptable, detail-oriented, world-class automotive technician with a demonstrated track record of experience in product/technical support, automotive shop management, diagnostics, root cause analysis, maintenance/repairs, quality assurance, customer service, training and mentoring, and staff supervision. Rich stamped at the final assembly plant. 283 blocks (3.875" bore, 2.3" main), 302/327/350 blocks (4" bore, 2.3" or 2.45" mains), and 400 blocks (4.126", 2.65" mains). sixth month, June. Wagner attended California State University, Los Angeles, and has a degree in journalism. var iframeprops='width=950 height=250 marginwidth="0" marginheight="0" hspace="0" vspace="0" frameborder="0" scrolling="no"' This post provides you with a detailed explanation about stamping numbers on a GM/Chevy engine. By Year (1964-1972). The vehicle identification number is stamped next to the engine code number with model year, plant identification and vehicle serial number. letter "A" was added to note the rollover. digit for the year such as J 25 7 would be October Chevrolet issued It's been reported that beginning in 1970, if more engines were needed If you already know what you're doing, Chevy Engine Codes are listed down below. Chevelle, Camaro, Nova and Passenger 115, 130, 150, 165, 170, 175, 180, 200, 245, 250, 255, 270 & 300 HP 2.0" Outlet, Corvette 270, 365 & 390 HP with and without A.I.R. http://uscode.house.gov/download/pls/49C331.txt or search the Internet These numbers are found after removing the valve cover on the head. The motor was assembled Engine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code) There is another type of stamping found on some blocks. the "CE" designation for replacement Chevrolet engines did These numbers are stamped into a machined pad in front of the passenger side cylinder head more than not its covered up by the alternator. Sometimes the engine ID code is obscured by the alternator. six-digit sequence number of the vehicle. It represents any CID and is used to indicate this particular engine was replaced under Warranty. The engine VIN also contains six digits that are used to denote the last six digits of the vehicles VIN. V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. Leave a comment and tell me what you couldnt find as expected from this post. The vin code format is stamped onto most engines. Are you looking to have the information of your SBC or BBC engine using casting numbers? as needed. Courtesy Todd Burke, A calendar year 1973 replacement engine #356957, A calendar year 1973 replacement engine #367742, Warranty engines will be date stamped on the starter mount pad. Chevy smallblock and big block cylinder heads have the CASTING NUMBER and the CASTING DATE located in the rocker arm valley. Lastly, in extreme cases, you'll want to verify the numbers stamped onto the component were the ones stamped into it originally and aren't restamped. In this case V stands for Flint, Michigan. These two numbers are the casting number and engine ID code. The Chevy engine date codes are denoted as follows: 1st digit = month; The next 1 or 2 digits = date The last number = year An example of such a date code is the A72 which means; A = January 7 = 7th 2 = 1962, 1972, 1982, or 1992 Another example is the C106 which means; C = March 10 = 10th 7 = 1966, 1976, 1986, or 1996 Each individual were stamped with a partial VIN. While 6 different bore size blocks have been produced, the small block engine can be classified into 3 bore sizes and 3 main bearing sizes. or it doesn't. 12- Assembly Month (December) 02- Assembly Day (3rd of the Month) CKH- I'm not sure of the year of your engine, as I only have 70-75 info. 1st day of the month. you might see "T0601ED 6A174373" sixth month, June. Blue Seal Certified Author of auto/truck repair information. 283 blocks (3.875" bore, 2.3" main), 302/327/350 blocks (4" bore, 2.3" or 2.45" mains), and 400 blocks (4.126", 2.65" mains). This list of codes is a summarization, it is not complete nor all inclusive. If a customer had problems with his So what do we have so far in this example? The first built LT-1 was a small block engine produced by Chevrolet between 1970 and 1972 and was only offered in the Chevrolet Corvette and the Camaro Z28. please note the exact page by its address The point of this article is to help you figure out how to decode stuff. since a generic block for fitted engine could be used as a warranty Small block casting date is located on driver side rear of block on flange forward of bellhousing. 3N - CDR|CE - CMJ|CMK - CUD|CUF - DTM|DTR - HQ| HR - TBS|TBT - TJS|TJT - TXB|TXC - UTT|UTU - ZY, Big Block Engine Suffix Code Menu On the other hand, the vehicle VIN is also used to determine the body style, the engine type, the security code, the platform code, and further details. If you're looking at the engine code - this is already known. Click here to view our promotions! ledge forms the mating surface between the block and the transmission It doesn't indicate what the original equipment was. Chevy 327 Engine Identification, Best Small Blocks: #1. (1 = Chevrolet, 3 = 1973, N = Norwood, 100001 = Production sequence of vehicle VIN). Chevelles along with the L79 engine blocks from 1965 & 1967 Chevelles were warranty replacement engines. Chevelles along with the L79 engine blocks from 1965 & 1967 Chevelles What good is knowing the transmission? is strictly prohibited by law. He served stints as a newspaper and magazine editor in Saudi Arabia and the United Arab Emirates. but if it's a 3/4 or 1 Engine Code Stamping Numbers Therefore the two stampings will and see if it matches the vehicle, and if the code signifies Z28 or SS equipment. But numbers correct is not numbers matching. If you're looking at the engine code - this is already known. by the oil filter. date and suffix code. 283 Small Block Chevy Engine Codes Jintiaoore As recognized, adventure as capably as experience more or less lesson, amusement, as well as bargain can be . randomcontent[0]="http://chevellestuff.net/sidebar/random01.htm" In some cases suffix codes are reused twice or more over time, in this event check the partial VIN code or block casting date code Good news is 99.9% of the time - all blocks are set up this way - regardless of what transmission was being used. function random_iframe(){ Operates automotive equipment including electrical (scopes, DMMs, and logic probes), drivability (including scan tools and programming capabilities), alignment, brakes, HVAC, engines, and automatic transmissions. on this website. Casting Date Example: E038 - (E = Month, 03 = Day, 8 = Last digit of model year (1978)). For a list of assembly plants, click links. The plants VIN Code Released in the early 1950s, they were in production vehicles until the early 2000s. characters into one even line for stamping as opposed to each character Submitted photos by 4xxx is the Corvette Range. In this example "06" or the is substituted for the number "1". Exchange" and "Crate Engine" was used on blocks that Month: A = Jan, B = Feb, C = Mar, D = Apr, E = May, F = Jun, G = July, H = Aug, I =Sep, J = Oct, K = Nov, L = Dec. Notes (for below):"High Power" is the maximum rate HP this block was used for, "Low Power" is the lowest rated horsepower RPO engine the block was used in. is located on a ledge found at the rear of the block, most often on engine that was stamped "CE" with a 6-digit number following - At the front passenger side of the block, next to cylinder #2; or, - At the front passenger side of the block, next to cylinder #2; or - On the flat block just above the timing cover (in some truck or marine blocks), - At the back ledge of the block behind the driver-side cylinder head, next to cylinder #7; or, - At the back ledge of the block behind the passenger side cylinder head, next to cylinder #8; or. This Block Carries A GM Goodwrench 350 Crate Engine Casting Number. family or any print publications (books) associated with this author's efforts Chevy Camaro Engine Suffix Codes The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. sites such as Late model small blocks and early big blocks will have the date on the passenger side of the block. This website is designed and maintained by Webs by Dale (WBD). The engine has a block stamping #3731548, The Vin No. without express consent from WBD in writing. this date is accurate for federal mandate that engine blocks be stamped Clydeburge@gmail.com for Chevrolet Case or "CT" for Chevrolet Transmission. See cars produced from any assembly plant. It produces 162 horsepower and 257 lb-ft in the base model. and then see what year the block was made to pin down what application your block was originally used in. partial VIN, generally, only the 396 engines from 1965, 1966 & 1967 Beginning January 1, 1968 the federal government requested voluntary is substituted for the number "1". vx 14102058. original engine, while it was under warranty, it was replaced with an If you're looking at the casting # information and it mentions Mar 27, 2007 CE stands for Chevrolet Engine. SBC BBC V6 Chevy Engines Specs and Sizes [With Chart], Chevy Big/Small Block Casting Numbers Lookup. assured the partial VIN stamp was uniformly done from car to car. far as research has shown, Chevrolet did comply. Over the course of 50 years there were many different versions made. The engine VIN is derived from the vehicles 17-digit VIN and is used to identify the engine only. same information about partial VINs on engine blocks also applies to 25, 1967. Engine RPO Numbers: These are also located on the drivers side of the engine, at the back of the head on the transmission mounting flange. The suffix may also display or hint at the engines displacement and power output. This "CE" code is usually followed by a series of digits. HOWEVER - the engine code MAY HINT at this fact. "2800" is the last 4 digits One of the most complete suffix code collections we've found is The Lime Book, which covers all GM V-8 engines from 1955 to 1991. be for 1968 and later. used on the engine pad. The point of this article is to help you figure out how to decode stuff. here. Small Block V8 - Adjacent to the engine's cylinder heads on the passenger side of the vehicle ( like on the 400 small block ), and sits closer to the front of the core engine block. In some vehicles, the casting number is situated on the passenger side ledge, next to cylinder #8 (on some later production blocks), Look up what you engine blocks casting number means here: Chevy Big/Small Block Casting Numbers Lookup. This one produced in 1969 at Tonawanda with engine serial number 51128. TR6060 vs. T56 Magnum vs. CD009 vs. TKO600: Which Is The Best? Not to say mistakes weren't made as the person responsible had to Blue Seal Certified Author of auto/truck repair information. if (ie||dom) It's important to note that Mortec - Chevy Small-Block Casting Numbers, Engine Codes and more Chevy Casting Numbers and more! Some engine machining operations (decking) will obliterate the engine ID. pads. 1970 S St. Louis (built Vettes & Impalas). .1NN179056 can you help.thanks, Your email address will not be published. replacement for any number of years' engines, applications, and for the location on the block may vary between the plants and years but The format consists of divisional identification a "gang stamp" as shown in the photo above. assured the partial VIN stamp was uniformly done from car to car. in your browser's window when reporting it. If you're looking at the engine code - this is already known. If you have any questions on this, hop on SS396.com or give our friendly techs a call at (203) 235-1200. It is a direct replacement for the original equipment. Another example: T0830CTY- (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400). E.g. Big Block Chevy: Machined pad in front of the passenger side cylinder head or above timing chain cover. at front of block by engine head #TI220FC. The Chevy small block 327-cubic-inch V-8 engine can be identified by its engine code stamping numbers. But numbers correct is not numbers matching. (1 = Chevrolet, 3 = 1973, N = Norwood, 100001 = Production sequence of vehicle VIN). Decoding small block Chevy engine suffix codes and stamped numbers DTR - HQ Provides the following: V= Flint Engine 0124=January 24 (I know it looks 0I24, but I think it's really 0124, as that's the code format) EC 1966 327 A.I.R., glide - 275 4 Chevelle/1200 Below we have compiled a list of sites with casting/production info we found useful in our travels. model year, a letter for the final assembly plant, and followed by the links. - gmh dealer codes The engine assembly date must precede the car build date (often by a few days), otherwise something is amiss. Your email address will not be published. stands for "Chevrolet Engine" the location on the block may vary between the plants and years but a comparable production engine. It can be a bit hard to see with the ignition shielding in place but the numbers are fairly large. Small Block Chevy Head ID. These will have a stamp something like "CC" home the most accurate and up to date information to the Chevelle community can E.g. The Small Block Chevrolet engine is one of, if not the most successful engines of all times. Thanks, Lots of good info. The final digit could be a year code. randomcontent[1]="http://chevellestuff.net/sidebar/random02.htm" 7 Absolute Best Carburetors for Chevy 350 in 2023 [Review]. The same applies as for the block casting numbers, they will be hard to see with the engine still in the truck. 1- Chevrolet. on the front pad of the block deck on the passenger side. Chevelle, Camaro & Z-28 200, 210, 220, 250, 275, 290, 325 & 350 HP 1.9" Outlet A.I.R. As the names imply, Casting Numbers are cast into the block when it was made. Specific numbers identified the time period it was built and its horsepower range. In this made up example our engine's assembly date is August 1st (08 for the month of August and 01 for the day of the month). at different locations on the engine block. ChevelleStuff Family of Websites - All Rights Reserved, Mac's - Prototypes The block casting number on small block and big block Chevy V8 motors There are two very important sets of numbers on Chevy small blocks (well, big blocks and even inline-six engines too!) Below is the meaning of each of the letters and numbers in the engine serial number: The first five digits are called the prefix and contain the details about the engine assembly factory, the month in which the assembly was made, and the specific day of the assembly. The prefix portionof the ID code tells you the engine assembly plant code, and the engines assembly date (for example, 0701 = July 1st.no year is indicated). //This credit MUST stay intact for use First letters of "F," "S," "K" or "T" denotes Flint, St. Catherines, Ontario or Tonawanda, followed by month/day/year of build and the suffix code. In 1968 the main bearing saddles were increased in size from 2.3" to 2.45". Passenger 195, 200, 220, 250 & 275 HP 2.0" Outlet A.I.R. Here you can clearly see the CE951128 stamping on the engine pad. a 1976 dated Chevrolet parts book, "The engine plants In this case the first letter "T" stands //Specify IFRAME display attributes Small Block Chevy: Machined pad in front of the passenger side cylinder head. Anyways, that's what that circle thing is (if you happen to see it on something). Engine ID Code Example: V0101CLJ- (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code) Type your engine block casting number in the SEARCH BOX below. end of story. You need to decode the engine after the 1975 model year. It's important to note that The GM division number ('1' for Chevrolet) technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what All these are identified here. This topic can be somewhat confusing, especially with the amount of information available and the interpretation of it. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0. name Decode small block Chevy engine suffix codes with our SBC casting. Over the last 50 years there have been some variances to the standard block casting numbers and engine ID codes. 331" for more websites with information. In 68-69 modelcars, the serial (VIN) number of the car the engine was installed in is stamped next to, or under the engine code ID. Corvette 190, 195, 200, 235, 255, 300, 330 & 350 HP 1.9" Outlet A.I.R. for an engine factory Tonawanda Engine Plant, either "F" Therefore the two stampings will It is believed this method of identifying replacement engines stopped number, model year, assembly plant designation and vehicle serial or sequence number. The block casting number on small block and big block Chevy V8 motors is located on a ledge found at the rear of the block, most often on the driver's side. Depending on the year and plant, the partial Our Tru-Ram Exhaust Manifolds are one of our most popular items. I have a 1961 Corvette Convertible. All these are identified here. They also show the date of assembly and the vehicle model in which the engine was installed. the driver's side. It is a direct replacement for the original equipment. E.g. In this the thing is - you need more than the casting #. A Typical Small Block Chevy Casting Number, The Chevy Engine ID Code Features A Prefix And Suffix Code That Provides Key Engine Specs. Here's your chance, click below to see what positions are opening soon! Project Chevelle got LS swapped! Date/Suffix Code: Chevelle, Camaro and Nova 200, 210, 250, 255, 290 & 300 HP 2.0" Outlet. http://428cobrajet.org/id-block.html For example, select "DTR-HQ" if you'd like to find code DZ. Here's The Chevrolet small-block engine is a series of automobile V8 engines built by the Chevrolet Division of General Motors using the same basic, and for a V8, smaller engine block. The digit denoting the month is usually a letter between A and L but can include numerical numbers in some instances, with 1 indicating January and 12 indicating December. a "gang stamp" as shown in the photo above. Note: CODE CExxxx (counter or crate engine) was used from 1968 to current year. 1970 Atlanta example of the partial VIN stamped on the engine pad. The casting number on my 1966 is 3858174 which is identified as a 327 ci V8 block. individual character often resulting in some very strange looking engine While the engine ID will not always tell the story on a service block or crate engine, the casting number still will. ONE NOTE: Casting #'s will trump the code on a descrepancy. Decoding the ID numbers on Chevy Smallblock motors: (Info compiled Ray Buck [09/23/2000]) Since there are several numbers on the block, we need to identify the ones we're gonna use. The only guarantee is to take off the pan and look. hz The "DB" on the end of the engine code does represent a Chevy small block 283ci 230hp with Powerglide . The optional four-barrel carburetor gives 180 horsepower and 260 lb-ft of torque. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing. randomcontent[2]="http://chevellestuff.net/sidebar/random03.htm" - trim codes (1 = Chevrolet, 3 = 1973, N = Norwood, 100001 = Production sequence of vehicle VIN). Welcome to Mortec, an online auto magazine with an affinity for all things Chevy, and particularly, the highly regarded Chevy Small-Block Engine. Lastly, in extreme cases, you'll want to verify the numbers stamped onto the component were the ones stamped into it originally and aren't restamped. Corvette Plenum MASS air 9th injector style, Base Speed density type (87 & UP intake bolt pattern), Corvette Base MASS air 9th injector style Aluminum heads (86 and older), Rectangular port Aluminum Low rise L-78/L-89/LS-6. If it does - it's "numbers matching", They help in identifying the assembly factory of the engine block you shave. Tonawanda it which serialized that particular engine. Small Block Chevy Engine Block Identification . Lastly, in extreme cases, you'll want to verify the numbers stamped onto the component were the ones stamped into it originally and aren't restamped. //For full source code, and Terms Of use, visit http://dynamicdrive.com Look up what your GM engine serial number means here: GM/Chevy Engine Serial Number Lookup. Starting in 1970, the serial number is stamped either above the oil filter, somewhere on the block the plant would re-use the numbers using the letter "A" after The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. The location of this code depends on the type of engine, as follows: Small Block Chevy: Machined pad in front of the passenger side cylinder head. The block casting number on small block and big block Chevy V8 motors If you think there is something in error, Registries for Chevelle/Camaro/Nova/HHR, http://uscode.house.gov/download/pls/49C331.txt. could have happend (or not happened). //No need to edit after here Here T099 represents Tonawanda (T), September (09), 1969 (9), Warranty engines will be date stamped on the starter mount pad. the partial VIN on the engine pad next to the Flint or Tonawanda engine by the oil filter. These will have a stamp something like "CC" The Engine Code is V0627 UZH which indicates it is 1991 350 210 HP, 4B, Mt, off a truck. var dom=document.getElementById&&navigator.userAgent.indexOf("Opera")==-1 The engine date must precede the car build date, otherwise something is amiss. stamped into the pad on the front passenger side of the block. After being stored away for decades, Bob finally finished his big block powered '36 Chevy coupe Having issues fitting headers into your car/engine? Suffix codes are either alphabetical or alphanumeric. As - Exports An arrow points to the beginning of the shift an another dot outside the circle indicates what time of day the cast part was made. This Chevelle, Camaro, Nova and Passenger with A.I.R. the source, production date, and same type designation as stamped on for "Title 49, United States Code, Subtitle VI, Part C, Chapter VF292800 - is an example of a over the counter crate engine. In honor of Presidents Day, celebrate all week long and save some Benjamins with Free Shipping* on orders over $199. Date codes consists of a letter, 1 or 2 digits for the day, and 1 rough cast area next to the oil filter and sometimes the stamping is Corvette 300, 330, 350 & 370 HP 2.0" Outlet A.I.R. If it doesn't match - is it correct? Talk to the experts. During this timeframe, this was either a 307 or 350 engine. The LS swap is no doubt still going strong, but if youre planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, youll need to pay attention to a few items we discuss in this buyers guide.