Chevrolet engine block casting numbers

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.

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.

Chevrolet engine block casting numbers

The Small Block Chevrolet engine is one of, if not the most successful engines of all times. Over the course of 50 years there were many different versions made. Some had better heads, more compression, or even more cubic inches. There are two sets of numbers that will help determine this. The first is a set of Casting Numbers, the second is a set of Stamped Numbers. As the names imply, Casting Numbers are cast into the block when it was made. These will tell you general information about the engine. If you want more specific information, you have to look at the Stamped Numbers. Stamped Numbers are a set of numbers literally stamped into the block. These numbers will tell you where the engine was assembled, production date, and the suffix code.

Truck Bowtie, 45cc, angle plug, "low" port, cc intake port, aluminum, 18' race head

This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox. General Motors GM truck motors are known for their durability, reliability, and performance. Whether you're looking to purchase a new or used GM truck engine for your race car build, it's important to know how to identify the motor to ensure you're getting the right one for your needs. One way to identify GM truck motors is by their casting numbers.

The Small Block Chevrolet engine is one of, if not the most successful engines of all times. Over the course of 50 years there were many different versions made. Some had better heads, more compression, or even more cubic inches. There are two sets of numbers that will help determine this. The first is a set of Casting Numbers, the second is a set of Stamped Numbers. As the names imply, Casting Numbers are cast into the block when it was made.

Chevrolet engine block casting numbers

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?

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Free Catalog. II LT4, aluminum, reverse flow cooling, cc port, The format consists of divisional identification number, model year, assembly plant designation and vehicle serial or sequence number. I Goodwrench crate motor,"Hecho en Mexico", 76cc We are always looking for new castings numbers. Small Block Chevy Toating Assembly, dish. You will usually find a "CE" for Chevy Engine. If it does - it's "numbers matching", otherwise - it's not. Below we'll break down the ID codes prefix and suffix sections. Of the thousands of available suffix codes, this one shows four possible applications, ranging from a Camaro with HP to a Z with HP. As new castings are released on late models keep your eyes open for the new numbers. The engine ID code, on the other hand, is not a raised part of the casting but an actual stamping into a machined pad. It doesn't indicate what the original equipment was. Small Block Chevy Identification Guide. Have a question? A "T" can have the top horizontal part of the letter missing making it look like the upper case letter "I" or a lower case letter "l".

Knowing how to do a GM engine serial number lookup can be beneficial for you.

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. The "12" stands for the 12th day of the month. Do it while the car is on a lift. However, a properly prepared 2 bolt main engine will work just fine often times you'll lose a rod bolt before you break a crank because it's "only" a 2 bolt main. Here's your chance, click below to see what positions are opening soon! On the side of some later blocks the last three digits of the block casting number are cast into the block, but these are difficult to see when the engine is in a vehicle. 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. Have a question? The Keys To Details Details matter — plain and simple. L99, Gen. Bowtie, Aluminum, nodular iron splayed caps, wet sump, 4. The first is a set of Casting Numbers, the second is a set of Stamped Numbers.