Starting in 1970, the serial number is certainly stamped . stamped character was placed in a holder and secured before the engine Late model small blocks and early big blocks will have the date on the passenger side of the block. 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. Camaro and Z-28 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 1.9" Outlet A.I.R. There are over 1600 pages on this website. The prefix portion of the ID code tells you the engine assembly plant code, and the engine's assembly Kevin W. explains his build experience with headers. sites such as under Warranty. 195, 220, 275 & 350 HP 2.0" Outlet Chevy II A.I.R. In this The Chevy small block 327-cubic-inch V-8 engine can be identified by its engine code stamping numbers. It is a direct replacement for the original equipment. These blocks are referred to as the "Gen I" small-block, the subsequent "Gen II" LT, and "Generation III/IV" LS, along with the current "Generation V" (LT/EcoTec3) engines. 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. However, on the big-block V8 engine, the serial number is located on the cover around the timing belt. would be stamped with a partial VIN consisting of a single number for models was added to the partial VIN. Passenger and Truck 195, 200, 220, 250 & 275 HP 2.0" Outlet, 195, 220, 275 & 350 HP 1.9" Outlet Chevy II with AC, Corvette 250, 270, 300 & 350 HP 2.0" Outlet, Chevelle, Camaro and Nova 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 1.9" Outlet, Chevelle 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 2.0" Outlet, Corvette 300, 360, 365 & 375 HP 2.5" Outlet, Corvette 300, 340, 360, 365 & 375 HP 2.5" Outlet, 195, 220, 250, 270, 275, 300 & 350 HP 2.0" Outlet Chevy II, Corvette and Passenger 230, 245, 250, 270, 275, 290, 300 & 315 HP, Corvette and Passenger 195, 200, 220, 250, 270, 275, 290, 300 & 350 HP 1.9" Outlet, Corvette and Passenger 220, 250 & 300 HP 1.9" Outlet, Corvette and Passenger 220, 245, 250, 270 & 283 HP, Corvette and Passenger 210 HP 2-Bolt Flange, Camaro, Monte Carlo, Malibu and Passenger. end of story. Date/Suffix Code: Machined Small Block Chevy Iron Engine Block, Speedway Small Block Chevy Overhaul Gasket Set, 350 Chevy, '67-'85, Budget Street Small Block Chevy 350 Engine Rebuild Assembly Kit, Pioneer Automotive PE-100-BR Chevy 283-350 Brass Freeze Plug Set, King Chrome Small Block Chevy Deluxe Chrome Engine Hardware Kit. VIN code format Example: 13N100001 Starting in 1970, the serial number is stamped either above the oil filter, somewhere on the block All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code. Some other Chevy models will include the date code on the driver side ledge, especially on the recently manufactured blocks. Another CE stamping, this one is 066953 from 1970. Chevelle, Camaro and Z-28 115, 130, 145, 150, 160, 165, 170, 175, 180, 185 & 245 HP 2.0" Outlet A.I.R. In 1972 and on, it was simply "N". The engine date must precede the car build date, otherwise something is amiss. The suffix portion tells you the original application, vehicle model, engine RPO/ transmission / horsepower, etc (for example, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400). the "CE" designation for replacement Chevrolet engines did The "CE" "Numbers Matching" This Beginning January 1, 1968, by federal mandate, all engine blocks It is believed this method of identifying replacement engines stopped This the location on the block may vary between the plants and years but Therefore the two stampings will Over the course of 50 years there were many different versions made. Lets find out! This article provides helpful hints on ways to modify or add parts to make the headers fit in your specific car. 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. var ie=document.all&&navigator.userAgent.indexOf("Opera")==-1 letter "A" was added to note the rollover. Blue Seal Certified Author of auto/truck repair information. My small block has a stamp of T07i9S. one produced in 1971 at Tonawanda with engine serial number 73170. VIN code format Example: 13N100001 When people say "It's numbers matching" - what they mean is the engine (or other component, i.e the transmission) can be MATCHED to the vehicle it was Car & Truck 2-bolt Passenger stick 1-piece seal, 2 & 4-Bolt Passenger stick 1-Piece seal Roller cam, Car & Truck 2 & 4-bolt Passenger stick 1-piece seal, 2-bolt Truck Passenger stick 1-piece seal, 2-bolt Roller cam Passenger stick 1-piece seal, car & Truck 2-bolt Passenger stick After 79, Camaro/firebird 2 & 4-bolt LT-1 Reverse cooling Roller cam, Car and Truck 2 & 4-bolt 1 Piece Seal Passenger stick, Chevelle, Camaro, Monte Carlo and Passenger. Engine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code) They are located on the drivers side rear of the block on the flange forward of the bellhousing. All these are identified here. 7 Absolute Best Carburetors for Chevy 350 in 2023 [Review]. Learn about performing an LS Swap in a 1972 Chevelle in this tech article. In this case the first letter "T" stands Navigate the table of contents below to go to the part youre looking for. 14102058. 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. //No need to edit after here This stamping will include the prefix code (assembly plant and assembly date code) and the suffix code. This match is done via the PARTIAL VIN stamp on the component. The next two digits stand for the month at a given plant in a year than the range of sequence numbers allotted, Decode small block Chevy engine suffix codes with our SBC casting. Big Block Chevy: Machined pad in front of the passenger side cylinder head or above timing chain cover. The Chevy small block 327-cubic-inch V-8 engine can be identified by its engine code stamping numbers. like this was not mandated but was voluntary to comply as long as they The motor was assembled Keep in mind that some small-block and big-block engines have the number stamped in the same place. randomcontent[2]="http://chevellestuff.net/sidebar/random03.htm" insure the numbers were changed for each vehicle as necessary. Date/Suffix Code: As a comparable production engine. The suffix may also display or hint at the engines displacement and power output. This is my opinion, and the generally accepted norm: have different fonts, character sizes, and in some cases will be stamped The cars produced from any assembly plant. next to, or under the engine code ID. Each individual The format consists of divisional identification number, model year, assembly plant designation and vehicle serial or sequence number. without payment expected or due to the contributor. Block casting dates are alpha-numeric, where the first character is a letter that equates to the casting month followed by a one or two digit day code and a single or two digit year code. The point of this page is to help you figure out how to decode stuff. Morec1@aol.com. home is used for Saginaw Service. The stamping on the front pad does not follow the usual pattern of the engine plant, followed by the engine assembly date, followed by the engine suffix code. one change was made in 1968. May 7, 2015: This ChevelleStuff.net The partial VIN will match the vehicles VIN. LS-5. The engine assembly date must precede the car build date (often by a few days), otherwise something is amiss. Chevelle, Camaro, Nova and Passenger with A.I.R. . This ledge is below the deck of the block and the While the engine ID will not always tell the story on a service block or crate engine, the casting number still will. //This credit MUST stay intact for use What good is knowing the transmission? Engine ID Code: V0801CML (This ID is completely made up), An Early Chevy Small Block Casting Date Code, Chevy Engine Casting Numbers Decoding Help. The point of this article is to help you figure out how to decode stuff. A CE engine is a warranty replacement or an engine that was bought from the parts department. Can you tell me what year this engine is hj These four digits are the numeric code for the day and month. links. I have a 1961 Corvette Convertible. For example, Tonawanda was in your browser's window when reporting it. date (for example, 0701 = July 1st.no year is indicated). Suffix codes are R, RA, S, SA, RB, K, SB and SG, with each suffix denoting the type of carburetor, transmission and whether the Chevy is equipped with air conditioning. A 1968 version of an Atlanta partial other pieces and parts should have been on it, and check those casting #'s. 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. replacement for any number of years' engines, applications, and for number. var iframeobj=document.getElementById? 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. example, 6A174373 decodes to 1966 Atlanta final assembly, and the last example is ED, a 1966 396cid/325hp for a manual transmission. hx Required fields are marked *. Often referred to as a gang stamp because the partial VIN characters 331" for more websites with information. Operates automotive equipment including electrical (scopes, DMMs, and logic probes), drivability (including scan tools and programming capabilities), alignment, brakes, HVAC, engines, and automatic transmissions. These were done by hand and by Generally, you can find the engine VIN stamped next to the engine ID code or below it. MT (or Manual transmission) IMPLIES - the boss (or the pivot itself) for the clutch Z-bar is present and threaded and the crankshaft The engine could use a stock 426 Hemi block, but the block that was used had none of the machining done for the lifters or any other associated pieces. not start until 1968 so any year designation in the engine number would code. A 1968 version of an Atlanta partial randomcontent[0]="http://www.chevellestuff.net/sidebar/random01.htm" Exchange" and "Crate Engine" was used on blocks that (1) There is a question as to whether - compliance Plate The partial VIN consisted of a single number representing the vx number, model year, assembly plant designation and vehicle serial or sequence number. ledge forms the mating surface between the block and the transmission The partial VIN consisted of a single number representing the Four bolt main blocks are desirable in high performance applications because the extra strength of the additional bolts keeps the bottom end rigid and less prone to failure. for Chevrolet Case or "CT" for Chevrolet Transmission. randomcontent[2]="http://www.chevellestuff.net/sidebar/random03.htm" with a partial VIN. On a small block GM V8, it is stamped in front of the cylinder head on the passenger side. get the 283 Small Block Chevy Engine Codes connect that we allow here It doesn't indicate what the original equipment was. characters into one even line for stamping as opposed to each character one produced in 1970 at Tonawanda with engine serial number 67997. The primary pieces of information you'll decode are the Engine Code and Partial VIN. In 1968 the main bearing saddles were increased in size from 2.3" to 2.45". Our sample block casting date in the photo at left is I 9 57, which would decode as September 9, 1957 (as found on a 1958 348 small block). That means there are literally millions of these Small Blocks out there. boss or on the bellhousing flange), most plants for most years did stamp technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what The Small and Big-Block Chevy engine stamping numbers are used to identify various specs of the engine. The vin code format is stamped onto most engines. Our Mopar flexplate buyers guide will help. The 327 Chevy engine is stamped on a machined pad on the front passenger side cylinder head usually behind the alternator. The plant, date, and engine ID codes were stamped at the respective VIN Code Format but is often erroneously referred to as "Counter Engine", "Counter A "two-bolt" main, or a four-bolt main. at different locations on the engine block. - trim codes This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing. These numbers are found after removing the valve cover on the head. Released in the early 1950s, they were in production vehicles until the early 2000s. In honor of Presidents Day, celebrate all week long and save some Benjamins with Free Shipping* on orders over $199. After being stored away for decades, Bob finally finished his big block powered '36 Chevy coupe Having issues fitting headers into your car/engine? This example happens to be a September 22-built if (ie||dom) Not to say mistakes weren't made as the person responsible had to Are you looking to have the information of your SBC or BBC engine using casting numbers? vehicle identification Welcome to Mortec, an online auto magazine with an affinity for all things Chevy, and particularly, the highly regarded Chevy Small-Block Engine. Chevy smallblock and big block cylinder heads have the CASTING NUMBER and the CASTING DATE located in the rocker arm valley. Before a federal mandate that all engine blocks be stamped with a Chevelle, Camaro, Monte Carlo and Passenger 110, 145, 155 & 175 HP. The Chevy big/small-block engine VIN (vehicle identification number) is a combination of digits that indicate the type of vehicle the engine is installed in, the model year, and the assembly plant. Engine Code Stamping Numbers Copyrighted 2002-2017, The first one I usually use is the block casting number which is located at the back of the driver's side cylinder head and will look something like: 3970010. not start until 1968 so any year designation in the engine number would Or has the transmission been changed? iframeobj.src=randomcontent[Math.floor(Math.random()*randomcontent.length)] the source, production date, and same type designation as stamped on In 68-69 model cars, the serial (VIN) quantity of the car the engine was set up in is stamped next to, or under the engine code ID. Step 1. Here are the stampings: 18F232087 V0603HN As far as I can tell the VIN numbers are stamped on the left, and the block casting numbers are stamped on the right. If it does - it's "numbers matching", rough cast area next to the oil filter and sometimes the stamping is 1970 396 engine with a TH400 transmission as noted by the CTW suffix VIN code format Example: 13N100001 This list of codes is a summarization, it is not complete nor all inclusive. stamped character was placed in a holder and secured before the engine did comply with sections 33102 and 33103. This is supported by a notation in These blocks were cast using the. nice clean LT1 in a 1971 Corvette Here you can clearly see the CE171787 stamping on the engine pad. The engine assembly day code can either be one or two digits, totally dependent on the actual day of the month the engine was built. It can be done on any 3970010 (or other) block. example, 6A174373 decodes to 1966 Atlanta final assembly, and the last like this was not mandated but was voluntary to comply as long as they The engine code and partial vin # will accurately nail down whatever the thing is rather quickly, and the other information will fall into line with that. ht Small Block Chevy Engine Block Identification General Engine Block Specifications 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. Real idenity is the number stamped on the passenger side head coding it to a camaro and such, but those numbers can be forged. Here T063 represents Tonawanda (T), June (06), 1973 (3). far as research has shown, Chevrolet did comply. six digits of the VIN. For example, in the small-block V8 engine, the serial number is located on the passenger side of the engines cylinder heads. Looking for original Specs in technical information on the following casting number and partial engine id Casting Number:10243880 Engine ID: 1M0823 8P04. ht Let's decode something real quick like, you can read the details further down below: Here's another: You might see something like this "CE056789" All engines are stamped with an engine ID code, consisting of assembly plant code, production could have happend (or not happened). What is the casting date? His experience ranges from legal affairs reporting to covering the Middle East. the "CE" and year designation. These numbers will tell you where the engine was assembled, production date, and the suffix code. Six Cylinder: Passenger side of the block behind the distributor. //Specify random URLs to display inside iframe Some have already been mentioned throughout this article and others are listed here as well. one produced in 1971 at Tonawanda with engine serial number 73170. I think the casting number should be 3969854which is a 69-72 396/402. Project Chevelle got LS swapped! otherwise - it's not. Leave a comment at the end of this post if you cannot find the information you want. var dom=document.getElementById&&navigator.userAgent.indexOf("Opera")==-1 being individually stamped. These casting numbers are well known and documented on several prominent websites such as Mortec and through numerous Chevy ID code books. here. hx or affixing an identifying number or symbol on major parts. Engine Code Stamping Numbers All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code. 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. Often hidden by the alterator. . The optional four-barrel carburetor gives 180 horsepower and 260 lb-ft of torque. Again, it either matches or it doesn't. "Numbers Matching" If a customer had problems with his Click here to view our promotions! Chevelle and Camaro 200, 210, 250, 255, 265 & 300 HP 1.9" Outlet, Chevelle, Camaro, Nova and Passenger 325, 350, 375, 425, 430 & 450 HP COPO LS-5 & LS-6, Passenger 265, 325, 335, 345, 390 & 425 HP, Chevelle, Camaro and Nova 325, 350, 375, 425, 430 & 450 HP LS-6 COPO, Chevelle, Camaro and Z-28 195, 200, 210, 250, 275, 290, 295 & 325 HP 1.9" Outlet, Chevelle, Camaro and Z-28 195, 200, 210, 220, 250, 275, 290, 295 & 325 HP 2.0" Outlet, Corvette 365 & 425 HP with and without A.I.R. (or in this case a Flint engine plant stamp) was used to 'gang' the How Do You Decipher SBC Engine ID Code Stamping Numbers? C5s181710 ", V8 Engine Block Casting Numbers It's been reported that beginning in 1970, if more engines were needed Stamped Numbers are a set of numbers literally stamped into the block. The last two to three digits indicate the engine suffix code used to denote the vehicle model and the transmission details. digit for the year such as J 25 7 would be October For example, Tonawanda was you might see "T0601ED 6A174373" The block casting number on small block and big block Chevy V8 motors 1st day of the month. If it doesn't match - is it correct? boss or on the bellhousing flange), most plants for most years did stamp Strong background in facilitating adult education including analysis, design, development, implementation, and evaluation of training programs. By Year (1964-1972). Casting Date These engines offered great performance with increased horsepower over the standard equipped 350 motors. 6 Best Camshafts For 350 With Vortec Heads 2023 [Review], 10 Best Shocks for Your Silverado 1500 Review [2023]. I have a 350 that is in my 64 Impala. originally used in. Small Block Engine Suffix Code Menu When people say "It's numbers matching" - what they mean is the engine (or other component, i.e the transmission) can be MATCHED to the vehicle it was one produced in 1971 at Tonawanda with engine serial number 71787. Early blocks will have just the ID code, whereas later engines (usually from 1968 on) will also have a partial VIN stamped with the ID code as shown in our example here from a 1972 Corvette with 350 small block with TH400 trans. 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. var dom=document.getElementById&&navigator.userAgent.indexOf("Opera")==-1 Small Block Chevy Head ID. VIN stamping would 18A174373. //Random iframe content- Dynamic Drive (www.dynamicdrive.com) CE stamping 073690 from 1970 and date stamped T109. Chevelle and Passenger with and without A.I.R. It doesn't indicate what the original equipment was. have different fonts, character sizes, and in some cases will be stamped stamp could be applied. Here you can clearly see the CE067997 stamping on the engine pad. Some engine machining operations (decking) will obliterate the engine ID. If you're looking at the engine code - this is already known. General Motors standardized this procedure by using what's called Camaro, Z-28 and Nova 115, 130, 145, 150, 160, 165, 170, 180, 185, 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 2.0" Outlet with and without A.I.R. Thanks The vin code format is stamped onto most engines. The entire engine Code contains the assembly plant, month and day along with the engine suffix Code. Some engine - body id plate by the oil filter. The engines VIN is important to some, since its matching with the cars VIN would mean the engine is the original one that came with the vehicle. For example the casting number 140029 will tell you that it was made between 1980 and 1985 and that its a 350 cubic-inch engine. The date code identifies various engine details like the month of production, the exact day of production in that month, and the year. after the 1975 model year. Chevy small/big-block date codes are either alphanumeric or numeric. Chevy Small Block Engine Suffix Codes for CID 350 . Mortec - Chevy Small-Block Casting Numbers, Engine Codes and more Chevy Casting Numbers and more! The engine VIN also contains six digits that are used to denote the last six digits of the vehicles VIN. VIN Code http://428cobrajet.org/id-block.html rough cast area next to the oil filter and sometimes the stamping is Often hidden by the alterator. MoPar forums searched seem to indicate that MoPar didn't follow the 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 } Suffix codes are either alphabetical or alphanumeric. at a given plant in a year than the range of sequence numbers allotted, The year is not specifically of the GM part # for the crate engine assembly. A Typical Small Block Chevy Casting Number, The Chevy Engine ID Code Features A Prefix And Suffix Code That Provides Key Engine Specs. You need to decode the engine is strictly prohibited by law. required the numbering would start over again at 50,000 but the "CE" was created as an informational forum only and the information is updated - 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. The primary pieces of information you'll decode are the; The engine code and partial vin # will accuratelynaildown whatever the thing is rather quickly, and the other information will fall into line with that. done. GM body designation. were stamped with a partial VIN. assigned the sequence range of 50,000 to 79,999 so if more engines were Engine ID Code Example: V0101CLJ- (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code)Another example: T0830CTY (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400), For a complete list and breakdown of Small Block Chevrolet Suffix Codes, visit Nastyz28.com. Numbers matching is important when you're trying to decode a Z28 or Super Sport where the VIN won't identify the vehicle as such. Clydeburge@gmail.com Where Are Chevy Small Block Casting Numbers Located? For example, when it comes to service blocks and crate engines you generally will not get a full engine ID because there wasn't an original application. In this episode, Zach and Joe discuss the swap and go for a drive to try it out. ChevelleStuff Family of Websites - All Rights Reserved, Mac's .1NN179056 can you help.thanks, Your email address will not be published. But numbers correct is not numbers matching. - Prototypes pad (in front of the cylinder head), or on the transmission flange somewhere. Navigate to the type of casting number you want in the table of contents below to lookup it up. - gmh dealer codes Chevelle, Camaro and Nova 200, 210, 250, 255, 290 & 300 HP 2.0" Outlet. 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. bellhousing. //For full source code, and Terms Of use, visit http://dynamicdrive.com Date codes consists of a letter, 1 or 2 digits for the day, and 1 331" for more websites with information. Passenger 235, 250, 255, 265 & 300 HP 2.0" Outlet, Passenger 235, 250, 255 & 300 HP 2.0" Outlet, Passenger 235, 250, 255, 265, 300 & 350 HP 1.9" Outlet. done. the partial VIN on the engine pad next to the Flint or Tonawanda engine Besides, the location varies between Chevy vehicles due to configurations and model numbers. engine that was stamped "CE" with a 6-digit number following hg SBC BBC V6 Chevy Engines Specs and Sizes [With Chart], Chevy Big/Small Block Casting Numbers Lookup. - Exports Often referred to as a gang stamp because the partial VIN characters links. VIN Code Format You need to decode the engine and see if it matches the vehicle, and if the code signifies Z28 or SS equipment. Later blocks will often have the displacement in liters cast in with the casting number as well. Your email address will not be published. Small Block Casting Numbers Lookup Type your engine block casting number in the SEARCH BOX below. var randomcontent=new Array() Some engine machining operations (decking) will obliterate the engine ID. TR6060 vs. T56 Magnum vs. CD009 vs. TKO600: Which Is The Best? in your browser's window when reporting it. This Block Carries A GM Goodwrench 350 Crate Engine Casting Number. This topic can be somewhat confusing, especially with the amount of information available and the interpretation of it. as needed. - Prototypes Here's your chance, click below to see what positions are opening soon! one produced in 1969 at Tonawanda with engine serial number 51128. VIN could be stamped into a different area of the block; the flange 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 . since a generic block for fitted engine could be used as a warranty V8 - On both small- and big-block V8s, the engine ID codes are found on a machined pad on the front passenger side of the block just below the head. document.write('') or "V" would indicate Flint, MI., "K" If you want more specific information, you have to look at the Stamped Numbers. and see if it matches the vehicle, and if the code signifies Z28 or SS equipment. at the Tonawanda factory on June 1st. the plant would re-use the numbers using the letter "A" after As the names imply, Casting Numbers are cast into the block when it was made. There are over 1300 pages and 8500 images Does that meaning anything to you that will Id the engine? warranty engines were sequenced from 50000 to 79999 but when that This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing. 6 cylinder engines are stamped on the passenger side of the . This post provides you with a detailed explanation about stamping numbers on a GM/Chevy engine. sixth month, June. You might see something like this "CE056789" The Chevy small and big-block engine date codes are located on the back ledge of the block, next to cylinder # 8, behind the passenger side cylinder head. This is my opinion, and the generally accepted norm: or the entire transmission. This In 1972, plant codes changed to reflect the VIN code. insure the numbers were changed for each vehicle as necessary. Chevrolet issued 4xxx is the Corvette Range. This will not be the same as the block's casting date (more on casting dates below).
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