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Engines For most Chevrolets, the partial VIN was stamped on the engine pad near the engine assembly code.On 1967 Camaros, generally only the Z28 and SS engines had the partial VIN's stamped. Being able to decode the various markings on a car or part is important in establishing what type of car or part you have. Above, left: A trim tag, lists original interior trim, exterior color, build date and other fisher body info. By decoding these items, you can gather a lot of information about your car as well as check the originality of a car.
This is especially helpful if you are checking out a "numbers matching" car where the asking price is usually higher. If any item appears to be amiss, you should be VERY skeptical of the originality of the car.
Please note - this site is heavily slanted towards Chevrolet decoding with an emphasis on Camaros. When you buy ANY car, the VIN on the piece of paper in your hand MUST MATCH the VIN affixed to the car.
In extreme cases where you have doubts about the validity of the VIN affixed to the vehicle (i.e. The following contains information which gives an example of what the various positions in a 1979 VIN stand for. The Tag is generally rivited onto the body, except in some years (1973 & 1974) where they simply screw it onto the car with sheet metal screws. You'll need to check the Build sheet (if available) or check for trace evidence on the car as to the original color.
The other "demand" for these tags is not just to fake Z28's or Super Sports, but to restore a car, then get a trim tag to match the restored car and try and call it "100% original".
For example, cylinder heads with the same casting numbers will have similar applications, although some of the finishing details, like valve sizes, may vary.
L6 – The engine identification codes are located on a machined pad on the right (passenger) side of the block behind the distributor. 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.
Head – Small- and big-block V8 head casting numbers are found underneath the rocker cover, usually between rocker arm pedestals.
Intake Manifold – Intake casting numbers on most all Chevrolet V8s are found on the top side close to the carburetor mounting pad. Cylinder Head – Date codes for small- and big-block V8 cylinder heads are usually found next to the casting number underneath the valve cover. Intake Manifold – Chevrolet used both cast-iron and aluminum intake manifolds throughout the muscle car era, and the date codes are located in different places on each. The engine ID number is stamped on this machined pad at the front (passenger side) of the engine. Simply put, the proper numbers can mean the difference between a solid investment and losing your shirt!
Since the cylinder block is serialized it’s possible to determine whether the engine (or the block, anyway) was installed on the assembly line. There have been instances where engines were replaced under warranty, and although the technicians were instructed to stamp the sequence number into the replacement block, this did not always happen.
Engines with complete assembly plant and ID codes, but no sequence numbers, are the result. Since the engine codes were stamped on a pad that is an extension of the deck surface, it is possible to remove the codes and identification numbers. Now that you know what the codes are, where they can be found, and why they’re important, you probably want to know how to read them. Due to the enormous amount of individual casting numbers produced throughout the muscle car era, we do not have room to publish them all here.
Another exception is found on some aluminum intake manifolds cast by Winters Industries (those with the famous Winters snowflake logo). Aluminum intakes cast by Winters Industries can be identified by the Winters “Snowflake” logo. Engine Codes – By deciphering the codes stamped on the pad just below the passenger side cylinder head, you can determine when, where and for what application your engine (or block) was built and intended for. At this point things change a little depending upon what year model car the engine was intended for use in. On 1970-and-later engines, the sixth character is the identifier (“C” = car; “T”=Truck) for the vehicle type, while the seventh and eighth characters are the engine identification code.
Due to space constraints we can’t publish a complete list of engine ID codes, but they’re available in many of the books found in our Literature section.
For more information on engine and component identification, we suggest the books shown here.
Automatic trans dimensions - chevellestuff, Decoding chevrolet vin, trim tags, cowl tags, engine, engine block casting numbers, cylinder head casting numbers, intake manifold casting numbers, transmission. Copyright © 2012 Autos Post, All trademarks are the property of the respective trademark owners.


The muncie 4-speed transmission was used with many different gm models and engine combinations from 1963 through 1974.
The chrysler 4-speed was introduced during the fall of 1963 for the introduction of the 1964 models, and has since been produced in several different versions with.
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C2 corvette restoration numbers: , You can see whether the vin and this trim tag information coincide. Advanced design chevy trucks 1947-1954 - greg wapling, Build year build months model year canadian model desription gm of canada plant serial # run from serial # ran to engine serial # sub ttls total; where appropriate. Old chevy truck – jim carter truck parts, Old chevy trucks the convenience of reaching cargo is ideal in a step bed pickup. Classic corvair production numbers - chevy resource, Chevy corvair monza spyder vin decoding casting codes cowl information rpo & dealer options production numbers car clubs. Chevy impala bel air caprice 210 nomad biscayne kingswood ss vin decoding casting codes cowl information rpo & dealer options production numbers car clubs. Copyright © 2012 Autos Weblog, All trademarks are the property of the respective trademark owners.
124379N506070 where 1 = Chevrolet 2 = Camaro e = 3 for 6-cylinder engine, or 4 for 8-cylinder engine bb = 37 for coupe body, or 67 for convertible body Y = 7 for 1967 model, 8 for 1968 model, or 9 for 1969 model P = N for Norwood, OH assembly plant, or L for Los Angeles, CA assembly plant xxxxxx = vehicle serial number sequence At each plant, the vehicle serial number started the year at the following number: 100001 for 1967 models 300001 for 1968 models 500001 for 1969 modelson the VIN plate and cowl tag.
In 1967, this code consists of the sixth through the thirteen characters of the full VIN, e.g.
The date code and casting numbers are mainly for identification and quality-control purposes. Date codes are found on the block, heads and intake manifold (along with many other areas and components throughout the car, but for the purposes of our discussion here, we’re not concerned with those). This pad is actually an extension of the block deck surface.But first, let’s give you a little background on why the numbers are there. The code on cast-iron intakes is normally found on top of the intake near the casting number. Actually, in the present-day restoration marketplace a premium is placed on muscle cars equipped with their original drivetrains. Original means the car has the engine or drivetrain parts installed by the factory when the car was built.
In some instances certain components are referred to by the last few digits of their casting number. There are many books listed in our Literature section that deal with the various casting numbers used, and we recommend that you consult those publications for complete listings.
With a few exceptions, date codes are alphanumeric sequences that will tell you the month, day and year a particular component was cast. For the most part engine assembly plants used a standard format throughout the muscle car years which makes decoding much simpler. On 1969-and-earlier engines, the sixth and seventh characters are the engine identification suffix. Each title gives you complete casting number and ID code information, along with helpful tips on decoding, where to look and what to look for.
7N123456.For 1968 and on, the drivetrain partial VIN's became a federal requirement and all engines were stamped with the partial VIN.
A true “numbers-matching” muscle car is always worth more than one with unoriginal drivetrain parts, so the question is, how do you determine what is and is not matching numbers? Aluminum intakes most always have the date code on the underside of the manifold, usually under the oil splash shield (if so equipped). This doesn’t mean a 396 Nova missing the original engine is worthless – far from it – but all else being equal the car with the original engine will be worth more.
Should is the key word in the above statement however, since there are rare cases where an engine can be considered original and not have a matching sequence number. That’s why it’s extremely important that all the pieces of the identification puzzle match. The normal practice was to grind off a certain amount of numbers and hand stamp the new digits. In the case of our examples, the “T” and “V” represent the Tonawanda, NY and Flint, Michigan plants respectively. This suffix denotes the displacement, horsepower rating and intended model the engine was built for. Stamped onto the pad by the final assembly plant (where the car is actually built), the number contains a divisional code (1 = Chevrolet), the last digit of the year model and a 1-character code (usually a letter code unless the car was assembled in Canada) for the vehicle assembly plant. Of course, to be truly numbers matching, the transmission and rear-axle assembly should be there as well, but most seem to check the engine only.
These books (and much more) can be found in the Literature sections of all the Year One catalogs.


We got this image on the internet that we feel would be one of the most representative pics for rustic decorating ideas for bedroom. We took this picture on the net that we feel would be one of the most representative photos for free angel tattoo designs to print. We took this image on the net we feel would be one of the most representative images for tuscan design kitchen. It’s really not that difficult, you simply need to know where to look and how to read what you find. In a nutshell, matching numbers refers to the various codes and dates found on all the major driveline components.
This will make the location of aluminum intake date codes impossible if installed on the engine, and even if not, the oil splash shield is in most cases riveted in place. If you plan on entering your car in concours classes at shows, the correct components are necessary if you hope to place well. The engine codes and sequence numbers should match, the various casting numbers should be correct and the component date codes must precede the build date of the car (but not by more than a few months).
You may have heard references to a set of “461? small-block cylinder heads or an “010? block.
In these codes an additional identifier was added, which in the case of Chevrolet was “C” for car and “T” for truck. The second and third characters are the month of assembly (“02? = February and “05? = May in the above examples), while the fourth and fifth characters represent the day of assembly (“05? = fifth day of the month and “25? = twenty-fifth day of the month). In our example, the “EG” denotes a 375-horse 396 special-high-performance engine destined for a Chevelle. Following these three characters are the last six digits of the car serial number (known as the sequence number). It’s not usually possible to determine if the heads or intake installed on a particular engine are the originals simply because they weren’t serialized by Chevrolet. These are the last three digits of the complete Chevrolet casting number (3782461 for the heads and 3970010 for the block). Because this code was taken from a #3782461 cylinder head casting which was produced between 1961 and 1966. The alternator was moved to the passenger side in 1969 which covered the engine stamp pad and caused the VIN stamp to be relocated by the oil filter. The engine components themselves (block, heads and intake) will have various casting numbers, date codes, and an engine identification code, all of which are important and should be correct if the car is to be considered numbers matching. However, the date codes of these parts should precede the build date of the car by 1-3 months. The Norwood plant stamped the VIN on the engine pad on early cars and moved the stamp by the oil filter in the December 68 timeframe. The number included a division identifier (1 = Chevrolet), the last digit of the year model, a code for the final assembly plant and the last six digits of the chassis serial number (the sequence number). This date needs to precede the vehicle assembly date.All transmissions, except for the Borg-Warner H-D manual 3-speed and the TH400, follow the same transmission code format.
Note that the format types shown below only apply to transmissions intended for vehicle assembly plant use. The front of the car is toward photo right.Muncie 4-speed Transmission Code Location Muncie 4-speed transmissions were stamped on the rear edge of the passenger side of the transmission maincase.
Saginaw 3- and 4-speed Transmission Code Location The Saginaw transmissions were stamped on the driver's side of the case, on a pad right below the side cover on the machined surface.Muncie 3-speed Transmission Code Location The 69 H-D Muncie 3-speed manual transmission was stamped on the driver's side, right below the side cover on the machined surface. The transmission tag was stamped with the date code, the unit's serial number, and, in large letters, the broadcast code.
1967-1969 Camaro TH400 Transmission Tag Format The TH400 transmission code was stamped on a metal ID plate located on the passenger side vertical surface of the transmission case. The table below summarizes the transmission maincase casting numbers for 67-69 Camaro applications.
This stamp can be difficult to locate on an 30+ year old axle due to layers of paint, undercoating, rust, and dirt. It may be necessary to partially clean the middle third of the forward face of the passenger side axle in order to locate and discern the characters. The CRG has researched a number of axle codes that were not documented, along with better descriptions of the axle applications and compiled the information in this listing.There were three axle center section casting numbers used for 67-69 Camaros (and all three were also used in Novas).
67, 68, and most 69 cars received either the 10-bolt(NNN) NNN-NNNNhousing or 12-bolt(NNN) NNN-NNNNhousing.
Later 69 (after 08A) cars could have received the 12-bolt(NNN) NNN-NNNNhousing.1970 axles had a C (for car) prefix added to the axle code. Most late 69 (after 08A) axles (10 or 12 bolt) were stamped using the 1970-style code, e.g. CBT instead of just BT.Notice that there is no specific year included in the axle assembly code. While some axles can be traced to a specific year solely on the basis of a rarely used application code, there are other axles stamped with a code that was used for multiple years.
In order to trace an axle to a specific year, it is advisable to also check the carrier casting number and casting date code.



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