You can find a stamped number on the top of the block, just forward of the leading edge of the passenger side head. This will tell you exactly what the original vehicle was and what year it was. Here’s a example of the stamping on the front passenger side of a GM 350.
How do I identify a Chevy 350 engine?
How to Identify a Chevy 350 Motor
- Look at the rear of the engine block for casting numbers, by where the transmission mounts to the engine. …
- Write down that number, and go to MorTec.com. …
- Look for a second casting number on the rear of the block. …
- Look at the front of the block, just forward of the valve covers.
Where is the VIN on a Chevy engine?
The vehicle identification number (VIN) is located on the left side rear of the engine block (1) and is typically a nine digit number stamped or laser-etched onto the engine at the vehicle assembly plant.
How do I find out what year my Chevy 350 is?
How Can You Tell What Year a Chevy Engine Is?
- Open the hood of your Chevy and locate the engine block. …
- Look at both the front face and rear face of the engine block for the block date code. …
- Decide which type of date code your block uses, either an alphanumeric or simple numeric code.
How can I tell which engine I have?
Your VIN number is your vehicle identification number and you can find your engine size by VIN number. In the series of numbers and letters, the tenth from the left denotes the model year and the eighth is the engine codes. Just tell the store clerk those two characters and you’re in business.
How do I know if my engine is a 350 or 400?
Check the bore on the engine if the heads are off. The Chevy 350 cubic inch engine has a 4-inch bore whereas a 400 cubic inch engine has a 4.125-inch bore. The 350 has a 3.48-inch stroke, and the 400 has a 3.75-inch stroke. The 350 rods are 5.7 inches whereas the 400 has 5.565 inch rods.
How can I tell what LS engine I have without VIN?
By visual inspection
The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. (See below.) If you don’t have the VIN, you can still identify the engine by visual inspection if you know what to look for.
How do you read a engine serial number?
Your serial number is located on your engine plate, often located on the left-hand side of the engine. Typically the first letters and numbers will identify the engine, for example, DJ51279, to find all the parts we have online for your engine.