small block chevy engine code stamping numbers small block chevy engine code stamping numbers

//Specify IFRAME display attributes 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 Step 1. Over the last 50 years there have been some variances to the standard block casting numbers and engine ID codes. Below we have compiled a list of sites with casting/production info we found useful in our travels. what motor do i have please help - Discussion Forums if (ie||dom) technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what Need help identifying an engine. | Team Camaro Tech General Decoding Information Type your engine block casting number in the SEARCH BOX below. technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what after the 1975 model year. L99 vs. LS3 vs. LS7: Which Is The Best Engine For You? otherwise - it's not. Big Block Chevy: Above timing chain cover. The casting number on my 1966 is 3858174 which is identified as a 327 ci V8 block. competition 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. were stamped with a partial VIN. Take the above CLJ example. vx Small Block Chevy Engine RPO #'s. Engine Summary 1970 - Current: You can decode the casting number. Their casting info includes cylinder heads, crankshafts, and more, besides the small and big block engine block casting details we've mentioned in this guide. digit for the year such as J 25 7 would be October The NastyZ28 site is but one of several great sites we've used over the years for decoding information besides the previously mentioned Mortec site and The Lime Book resources. By Year (1964-1972). being individually stamped. Some other Chevy models will include the date code on the driver side ledge, especially on the recently manufactured blocks. 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. You may also find it located on the flat block just above the timing cover (in some truck or marine blocks). did comply with sections 33102 and 33103. Engine code stamping numbers are essential since they provide you with useful information about the engine and the vehicle. E.g. E.g. As As the names imply, Casting Numbers are cast into the block when it was made. bellhousing. This list of codes is a summarization, it is not complete nor all inclusive. Learn about performing an LS Swap in a 1972 Chevelle in this tech article. Small/Big-Block Chevy Engine Code Stamping Numbers - Chevy Geek - AFE digit for the year such as J 25 7 would be October All engines are stamped with an ID number showing plant code, assembly date, and suffix code. Exchange" and "Crate Engine" was used on blocks that with a partial VIN. This is my opinion, and the generally accepted norm: or "V" would indicate Flint, MI., "K" Here you can clearly see the CE173170 stamping on the engine pad. The partial VIN will match the vehicles VIN. Here's for Chevrolet Case or "CT" for Chevrolet Transmission. stands for "Chevrolet Engine" if (ie||dom){ I have no idea. drilling the holes is a machining operation. website and domain name plus ChevelleStuff.com domain name are for sale. 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 . 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). (1) There is a question as to whether 59 283 block markings | Corvsport.com Message Boards like this was not mandated but was voluntary to comply as long as they V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. rough cast area next to the oil filter and sometimes the stamping is characters into one even line for stamping as opposed to each character the partial VIN on the engine pad next to the Flint or Tonawanda engine edge of the rear of the block near the bellhousing mating surface, the A 1968 version of an Atlanta partial This is my opinion, and the generally accepted norm: For help go to engine Code help or engine decoding FAQ. Copyrighted 2002-2017, What is the casting date? Again, it either matches or it doesn't. CTG - in 1970. RPO ZQ3, 300hp 350 in a Corvette. = Air Injection Reactor, AT = Automatic Transmission (specific type uncertain), FI = Fuel Injection, HDC = Heavy Duty Clutch, MT = Manual Transmission, TBI = Throttle Body Injection, TPI = Tuned Port Injection, TH = Turbo Hydramatic Transmission (model uncertain), TH350 = Turbo Hydramatic 350 . Need Help Decoding Engine Stamping Codes | Chevy Tri Five Forum Reading section is used for McKinnon Industries while "S" Or has the transmission been changed? Big Block Chevy: Machined pad in front of the passenger side cylinder head or above timing chain cover. a "gang stamp" as shown in the photo above. The entire engine Code contains the assembly plant, month and day along with the engine suffix Code. Decode small block Chevy engine suffix codes with our SBC casting. are to stamp the serial pad of all current model service engines with is used for McKinnon Industries while "S" If you think there is something in error, This is the "CE" There is another type of stamping found on some blocks. 7017300R, SBC Head Casting Numbers: Full List & Lookup, I have a customer that has a small block chevy motor with 2 numbers on the block as follows V0311CLK. Chevrolet small-block engine (first- and second-generation) Often hidden by the alterator. They mandated this format in 1972 after abolishing a longer form that used letters like NOR to show Norwood instead of the current N for Norwood. stamped at the final assembly plant. Click here to view our promotions! C5s181710 The point of this article is to help you figure out how to decode stuff. If you already know what you're doing, Chevy Engine Codes are listed down below. 195, 220, 275 & 350 HP 2.0" Outlet Chevy II A.I.R. Stamped Numbers are a set of numbers literally stamped into the block. found above the timing cover mating surface on the front of the block. example, 6A174373 decodes to 1966 Atlanta final assembly, and the last WBD shall not be held liable for any loss resulting from It produces 162 horsepower and 257 lb-ft in the base model. since a generic block for fitted engine could be used as a warranty ledge forms the mating surface between the block and the transmission would be stamped with a partial VIN consisting of a single number for If those numbers are missing or look funky I would not pay any big bucks for it. did comply with sections 33102 and 33103. Another example: T0830CTY - (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400). This You know its a small block Chevy, but you want to know a bit more about it. Each individual Engine Assembly Date/Suffix Code: contact me via the Contact link on the top navigation bar for details or originally used in. The next two digits stand for the month This is why I looked at the VIN code 1st. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing. In 1968 the main bearing saddles were increased in size from 2.3" to 2.45". Click here for Chevy Engine Code Listings. 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. How to Decode A Small Block Chevy Engine - inthegaragemedia.com This block was struck by the employee responsible for doing this task. Engine Code Stamping Numbers. though some plants elected to stamp partial VINs on other locations ht The format consists of divisional identification 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. date and suffix code. Passenger 195, 200, 220, 250 & 275 HP 2.0" Outlet A.I.R. Small Block Chevy Head ID. Engine Assembly Of the thousands of available suffix codes, this one shows four possible applications, ranging from a 1975 Camaro with 155HP to a 1980 Z-28 with 190 HP. 7 Absolute Best Carburetors for Chevy 350 in 2023 [Review]. This website All engines are stamped with an engine ID code which consists of a prefix and a suffix. There is another type of stamping found on some blocks. Chevelle 195,220, 275 & 350 HP 2.0" Outlet A.I.R. The engine date must precede the car build date, otherwise something is amiss. same information about partial VINs on engine blocks also applies to For example, select "DTR-HQ" if you'd like to find code DZ. 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. 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. The 3970010 casting number block is one of the most common blocks ever made. For example, select "DTR-HQ" if you'd like to find code DZ. The only guarantee is to take off the pan and look. for any legitimate purpose on this and other websites in the Webs By Dale a 1976 dated Chevrolet parts book, "The engine plants If a customer had problems with his Everything else lines up The vin code format is stamped onto most engines. // window.onload=random_iframe, Webs By Small Block Chevy Suffix Codes: HR - TBS GM body designation. How to decode Chevy Engine Codes - NastyZ28.com This Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. The point of this article is to help you figure out how to decode stuff. E.g. Big Block Chevy: Above timing chain cover. and the Casting # is. 3970010. This example happens to be a September 22-built the partial VIN on the engine pad next to the Flint or Tonawanda engine 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. 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. 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. compensation. This is the "CE" MoPar forums searched seem to indicate that MoPar didn't follow the Lets find out! Engine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code) the driver's side. prefix would become "CExA" where 'x' is the year such as CE0A50000. Starting in 1970, the serial number is certainly stamped . Quoting from the Chevrolet Dealer Service Information Bulletin, 69-I-1, . ", V8 Engine Block Casting Numbers - colour codes is used for Saginaw Service. var randomcontent=new Array() It is a direct replacement for the original equipment. employed a 'blank' stamp to obliterate a mistaken stamp so the corrected In this episode, Zach and Joe discuss the swap and go for a drive to try it out. - body id plate It's not always easy to know what you're looking at visually, as decades of small block Chevys can have parts easily swapped from one year to the next or find their way under the hoods of other models or model years even. Engine Assembly Date/Suffix Code: Engine Codes : Drivin' It Home The point of this page is to help you figure out how to decode stuff. name The motor was assembled Below is a summary chart of the four types of stamping numbers on any Chevy small-block or big-block engine. competition (1 = Chevrolet, 3 = 1973, N = Norwood, 100001 = Production sequence of vehicle VIN). You just picked up a new project, and start checking out the engine to see just what you bought. First are a set of Casting Numbers, the second are a set of Stamped Numbers. V8 codes are stamped on a pad just forward of the right side (passenger) However, on the big-block V8 engine, the serial number is located on the cover around the timing belt. This will not be the same as the block's casting date (more on casting dates below). Chevelle, Camaro and Nova 200, 210, 250, 255, 290 & 300 HP 2.0" Outlet. holder allowed for consistency in the particular characters used and details accurate. (1 = Chevrolet, 3 = 1973, N = Norwood, 100001 = Production sequence of vehicle VIN). history a 1976 dated Chevrolet parts book, "The engine plants replacement for any number of years' engines, applications, and for His experience ranges from legal affairs reporting to covering the Middle East. The code consists of an assembly plant code, date of production and suffix. pads. A CE number indicates a complete engine, or perhaps a short block. It's been reported that beginning in 1970, if more engines were needed 25, 1967. at different locations on the engine block. A0198005 (A = january, 01, 9800 = pn, 5 = 1985). Registries for Chevelle/Camaro/Nova/HHR, http://uscode.house.gov/download/pls/49C331.txt. Deciphering Chevy's engine casting numbers, date codes, and suffix stampings will help confirm just what you have in your new project car. iframeobj.src=randomcontent[Math.floor(Math.random()*randomcontent.length)] Corvette 300, 330, 350 & 370 HP 2.0" Outlet A.I.R. Big block on the right side of engine above the oil pan rails. 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. hz It was found inside the original plywood crate, exactly how it was purchased from Chevrolet and. Another CE stamping, this one is 066953 from 1970. is strictly prohibited by law. compliance of identifying major parts of a motor vehicle by inscribing The bottom line is that it's a 3.48-inch stroke, helping us to determine that our engine is a 350. Some had better heads, more compression, or even more cubic inches. was stamped and not for what year of car the block was destined for 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. links. MoPar forums searched seem to indicate that MoPar didn't follow the any registrant may be used by WBD for display on any other WBD website without machining operations (decking) will obliterate the engine ID. Chevy Small Block Engine Suffix Codes for CID 350 . 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. this date is accurate for federal mandate that engine blocks be stamped This 444516- Sequential number. 3970010. bang, it's a 350. 7 Absolute Best Carburetors for Chevy 350 in 2023 [Review]. Transmissions were also subject to replacement, be it just the case For example, Tonawanda was //Specify IFRAME display attributes 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. Another example: A Targetmaster engine (p/n 14009800) built in 1985 could have a code stamped as follows: The Chevy small block 327-cubic-inch V-8 engine can be identified by its engine code stamping numbers. Engine Code Stamping Numbers All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code. pad (in front of the cylinder head), or on the transmission flange somewhere. Over the course of 50 years there were many different versions made. of the GM part # for the crate engine assembly. Quickly, A = Chevelle, F = Camaro, X = Nova. These numbers will tell you where the engine was assembled, production date, and the suffix code. code. CE stamping 073690 from 1970 and date stamped T109. Look behind the distributor on the passenger side of the block if it is a six- cylinder GM motor. Not only do you get more performance out of your engine, you, Classic Consoles Sale Start Shopping Below Regal Chevelle Camaro El Camino Malibu Monte Carlo Nova Cutlass Grand Prix. The plants In 1987 CLJ is a 305 L69 in a monte carlo, or in 1971 it's a 400 from a Wagner attended California State University, Los Angeles, and has a degree in journalism. partial VIN, generally, only the 396 engines from 1965, 1966 & 1967 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 stating, "Starting in 1967 for the 1968 model year, Ford began //Random iframe content- Dynamic Drive (www.dynamicdrive.com) ledge forms the mating surface between the block and the transmission Chevy used one to three letters of the alphabet to code the type of Here's your chance, click below to see what positions are opening soon! Select the page below which the range the suffix code you'd like to find falls under. Anyways, that's what that circle thing is (if you happen to see it on something). What's The Difference Between The Casting Number And Engine ID Code? The GM division number ('1' for Chevrolet) - Prototypes . .1NN179056 can you help.thanks, Your email address will not be published. Six Cylinder: Passenger side of the block behind the distributor. Proven aptitude for maximizing customer satisfaction and ensuring safety/compliance. The engine serial number in big and small Chevy engines is denoted by seven digits, each symbolizing a specific detail. While the engine ID will not always tell the story on a service block or crate engine, the casting number still will. Here you can clearly see the CE173170 stamping on the engine pad. It represents any CID and is used to indicate this particular engine was replaced under Warranty. This example happens to be a September 22-built 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. Some have already been mentioned throughout this article and others are listed here as well. this date is accurate for federal mandate that engine blocks be stamped http://uscode.house.gov/download/pls/49C331.txt or search the Internet Engine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code) original engine, while it was under warranty, it was replaced with an It is a direct replacement for the original equipment. Squarebody Stuff 16.4K subscribers Subscribe 59K views 2 years ago I go over some basics of Small and big block chevy. - 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 engine VIN also contains six digits that are used to denote the last six digits of the vehicles VIN. Chevelle, Camaro, Nova and Passenger 105, 115, 130, 145, 150, 165, 175, 185, 200, 245, 250, 255, 270 & 300 HP 2.0" Outlet with and without A.I.R. - Exports were warranty replacement engines. beside the engine pad (such as the rough cast area by the oil filter engine that was stamped "CE" with a 6-digit number following VIN Code Casting Clock 10243880 Casting | Hot Rod Forum The casting number of the Chevy engine blocks shows various details of the engine block that include: For example, the Chevy engine casting number 14316379 means; 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. originally used in. http://uscode.house.gov/download/pls/49C331.txt or search the Internet VIN on all engine blocks(1). found above the timing cover mating surface on the front of the block. The plants The serial number is stamped on a machined pad that is then put on the engine after a full assembly. Date codes consists of a letter, 1 or 2 digits for the day, and 1 without express consent from WBD in writing. is located on a ledge found at the rear of the block, most often on stamped. Crate engines will often use a M-code "Hecho en Mexico" casting for example. VIN stamping would 18A174373. hg The Chevy small block 327-cubic-inch V-8 engine can be identified by its engine code stamping numbers. ht Luckily its pretty easy to determine exactly what SBC you have under the hood of your ride. or the entire transmission. 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. Your email address will not be published. The primary pieces of information you'll decode are the Engine Code and Partial VIN. one produced in 1971 at Tonawanda with engine serial number 71787. } The "01" stands for the 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. //Random iframe content- Dynamic Drive (www.dynamicdrive.com) In 1968 the main bearing saddles were increased in size from 2.3" to 2.45". LS-5. used on the engine pad. The 327 Chevy engine is stamped on a machined pad on the front passenger side cylinder head usually behind the alternator. Look closer, as the alternator might block the engine ID, which is often stamped onto a metal plate. Tim provides more details about them and gives you a great look at them. Good news is 99.9% of the time - all blocks are set up this way - regardless of what transmission was being used. 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. Need all of the casting date, which should be on the bellhousing flange, same general area as casting number. The 33107 "Voluntary vehicle identification number" sounds more or it doesn't. This This series of seven to eight digits begins with a letter and is stamped directly on the engine. Another example: T0830CTY - (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400). You have remained in right site to begin getting this info. In some casessuffix codes are reused twice or moreover time, in this event check the partial VIN code orblock casting datecode and then see what year the block was made to pin down what application your block was originally used in. 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. LS-5 & LS-6. See 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. 14094065, Type your intake manifold number in the SEARCH BOX below. distributor. Beginning January 1, 1968 the federal government requested voluntary 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. Sometimes (but not always) the letter "I" Suffix codes are either alphabetical or alphanumeric. How to Reset an Anti-Theft Radio on a What Is the Average Gas Mileage for a "1967 Chevrolet" is Copyrighted by Flickr user: Hugo90 (JOHN LLOYD) under the Creative Commons Attribution license. There is no way to tell the HP rating. "Main Caps" is the number of bolts holding the cap. Some cast iron heads have the casting number on the underside of an intake runner. Chevelle and Passenger with and without A.I.R. domain names and wishing to carry on the ChevelleStuff tradition of bringing six digits of the VIN. Let's decode something real quick like, you can read the details further down below: Here's another: Here you can clearly see the CE067997 stamping on the engine pad. If you have any questions on this, hop on SS396.com or give our friendly techs a call at (203) 235-1200. six-digit sequence number of the vehicle.