Small block chevy engine code stamping numbers

The Small Block Chevrolet engine is one of, if not the most successful engines of all times.

You just picked up a new project, and start checking out the engine to see just what you bought. Is it the original for the vehicle? Or has the transmission been changed? Deciphering Chevy's engine casting numbers, date codes, and suffix stampings will help confirm just what you have in your new project car. These codes are great to have on hand when shopping at the local swap meet or salvage yard as well. 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. Want to know exactly what you have?

Small block chevy engine code stamping numbers

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I know it is not the original engine, but would like to know what it is. I may not have all of the info here but here is what I can see. CE9B any ideas. I think there should be another 3 letter stamp after that??? Sort by Oldest first Oldest first Newest first Most reactions. This does not imply that it is the original but rather a GM authorized replacement under warranty. The B is seen occasionally and its relevance is unknown.

Both of the above examples are 4 bolt mains due to the application. One of the most complete suffix code collections we've found is The Lime Bookwhich covers all GM V-8 engines from to

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. In the main bearing saddles were increased in size from 2. You will NOT find a 4 bolt block made by the factory. Otherwise 2 or 4 bolt can mean either design Engine Code Stamping Numbers All engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code.

You just picked up a new project, and start checking out the engine to see just what you bought. Is it the original for the vehicle? Or has the transmission been changed? Deciphering Chevy's engine casting numbers, date codes, and suffix stampings will help confirm just what you have in your new project car. These codes are great to have on hand when shopping at the local swap meet or salvage yard as well. 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. Want to know exactly what you have?

Small block chevy engine code stamping numbers

Small-block Chevy engines are a staple in the automotive industry, known for their durability, reliability, and versatility. Engine code stamping numbers are a series of alphanumeric characters that are stamped on the engine block of a Small Block Chevy engine. They are used by mechanics, car enthusiasts, and collectors to identify and verify the authenticity of an engine. The engine code stamping numbers are usually located on the passenger side of the engine block, near the front of the engine. The stamping numbers are typically located above the timing chain cover or below the cylinder head. In some cases, the numbers may be located on the rear of the engine block, near the bell housing. Small Block Chevy engine code stamping numbers often contain abbreviations that represent specific information about the engine.

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Good news is In model cars, the serial VIN number of the car the engine was installed in is stamped next to, or under the engine code ID. February 7, The plant, date, and engine ID codes were stamped at the respective engine assembly plants while the partial VINs when applicable were stamped at the final assembly plant. Not to say mistakes weren't made as the person responsible had to insure the numbers were changed for each vehicle as necessary. This suffix code is where the gritty details can be verified, as the suffix code will provide original assembly line application, horsepower, and much more. Here T represents Tonawanda T , September 09 , 9. Small block casting date is located on driver side rear of block on flange forward of bellhousing. Even though some plants elected to stamp partial VINs on other locations beside the engine pad such as the rough cast area by the oil filter boss or on the bellhousing flange , most plants for most years did stamp the partial VIN on the engine pad next to the Flint or Tonawanda engine assembly date and ID letters. Original engine parts were often reused when in good condition. Identifying Small Block Chevy Engines. These numbers are often machined off when they deck a block. Hey man - is this a 4 bolt main? Each individual stamped character was placed in a holder and secured before the engine block was struck by the employee responsible for doing this task.

General Decoding Information This topic can be somewhat confusing, especially with the amount of information available and the interpretation of it. You can decode the casting number. And you can check dates.

It is a direct replacement for the original equipment. I found mine on the verticle rough casting near the filter only after being hot tanked. In model cars, the serial VIN number of the car the engine was installed in is stamped next to, or under the engine code ID. Here T represents Tonawanda T , June 06 , 3. If the year code is a single digit you'll have to use other block identification codes to confirm decade. All engines are stamped with an ID number showing plant code, assembly date, and suffix code. A "two-bolt" main, or a four-bolt main. It is believed this method of identifying replacement engines stopped after the model year. But numbers correct is not numbers matching. Log in. Suffix codes are either alphabetical or alphanumeric. So B is the second or third Can't recall if A was used time around for the serial number that followed. In this example, 6A decodes to Atlanta final assembly, and the last six digits of the VIN. That eliminates the and possibilities.