Small block chevy engine code stamping numbers

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

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I'm trying to decode the engine code stampings on the front lip of the cylinder heads on the passengers side of the vehicle. Sort by Oldest first Oldest first Newest first Most reactions. On the left rear top of the bellhousing flange there is a date code cast into the block

Small block chevy engine code stamping numbers

Date codes consists of a letter, 1 or 2 digits for the day, and 1 digit for the year such as J 25 7 would be October 25, 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. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing. The next two digits stand for the month of the year. In this example " 06 " or the sixth month, June. The " 01 " stands for the 1st day of the month. Sometimes but not always the letter "I" is substituted for the number "1". So what do we have so far in this example? The motor was assembled at the Tonawanda factory on June 1st. The year is not specifically stamped. Chevy used one to three letters of the alphabet to code the type of engine, transmission and vehicle into the suffix code. In that case you might see " TED 6A " stamped into the pad on the front passenger side of the block.

Sometimes but not always the letter "I" is substituted for the number "1".

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.

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. 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. This page has basic information on it, but it's a portion of the Small Block Chevy numbers information.

Small block chevy engine code stamping 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?

Tax manager salary

Or has the transmission been changed? The engine date must precede the car build date, otherwise something is amiss. CE stamping from and date stamped T It doesn't indicate what the original equipment was. Is there any way to tell the year of the block so I know the appropriate replacment intake manifold etc. Note-These serial number not only included engines but also partial engines, fitted block etc. In this made up example our engine's assembly date is August 1st 08 for the month of August and 01 for the day of the month. Suffix codes are either alphabetical or alphanumeric. It is believed this method of identifying replacement engines stopped after the model year. Starting in , the serial number is stamped either above the oil filter, somewhere on the block pad in front of the cylinder head , or on the transmission flange somewhere.

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.

You need to decode the engine and see if it matches the vehicle, and if the code signifies Z28 or SS equipment. Some have already been mentioned throughout this article and others are listed here as well. Hey man - is this a 4 bolt main? For a better experience, please enable JavaScript in your browser before proceeding. Often referred to as a gang stamp because the partial VIN characters or in this case a Flint engine plant stamp was used to 'gang' the characters into one even line for stamping as opposed to each character being individually stamped. Big block on the right side of engine above the oil pan rails. 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. Here's your chance, click below to see what positions are opening soon! I have no idea This holder allowed for consistency in the particular characters used and assured the partial VIN stamp was uniformly done from car to car. The final numbers represent the sequential number this block falls within the total number of GM replacements. The only guarantee is to take off the pan and look. Select the portion of the alphabet for your code.