| GM, or chevy suffix codes are a very misunderstood | | | | The classic car restoration enthusiast can use these |
| part of engine identification, and just as under utilized. | | | | suffix codes in combination with information provided |
| Very little thorough information has been available to | | | | in Chevy engine casting number guides to ensure his |
| the average enthusiast because GM never released | | | | restoration is as close to original specs as possible. |
| the chevy suffix codes to the consumer. GM | | | | Between 1962 and 1968, the VIN number of the |
| dealerships were likely the only ones who new what | | | | vehicle matches the number stamped on the engine, |
| the chevy engine suffix code meant, until recently. | | | | followed by the suffix code. Single suffix code letters |
| Chevy suffix code decoder books have been | | | | were used until 1964 and 2 letter suffix codes were |
| assembled through the hard work of one man, | | | | used until 1969, three letters are used from 1970 until |
| whose father instilled the importance of tracking the | | | | now. There a some exceptions to the number of |
| chevy engine suffix codes at a very young age. | | | | letters in chevy engine suffix codes in each range of |
| These decoders are his life's work. | | | | years. |
| What are they you ask? Chevy engine suffix codes | | | | Even if your classic Chevy is missing the original |
| are a series identification numbers stamped into the | | | | engine, it is still possible to use the suffix code |
| Chevy engine block that represent the combined | | | | located on other parts of the car to determine which |
| production number of an engine, equipment options | | | | engine you should look for as a replacement. |
| and ratings for the engine as well as the option series | | | | Between the combinations of the Chevy engine |
| of car it was built for. The suffix code is made up of | | | | suffix code, engine casting numbers, and engine |
| the letters trailing the numbers stamped into the | | | | casting dates, you should be able to locate the |
| block. The number portion of the stamping is the | | | | correct engine for your classic car restoration, even if |
| serial number of the engine. | | | | you may never locate the engine with the serial |
| The Chevy engine suffix codes provide some | | | | number matching engine stamping. |
| valuable information such as: | | | | Here's a good example of how I did it. I have a 1964 |
| - The car model or truck. | | | | Impala that did not have the original engine, but I |
| - The year or span of years the suffix code was | | | | knew it originally had a 283. I managed to find a 283 |
| used. | | | | with the "D" suffix code and a casting date of 1964 |
| - The cubic inch displacement of the engine. | | | | on it. The serial number doesn't match, but I know |
| - The horse power rating the engine was built to. | | | | the engine at least belonged in a 64 impala. I probably |
| - Transmission type used with the engine. | | | | couldn't hope for any better than that. |
| - Regular Production Option (RPO) the engine was a | | | | If you are on the hunt for an original engine, the |
| part of. | | | | Chevy engine suffix code decoder is a must have. |
| - Intake type such as 2 barrel carb, 4 barrel, | | | | You can use it combined with a cowl tag decoder, |
| aluminum etc. | | | | Chevy engine casting number decoder, and a model |
| - Emissions standards the engine might have been | | | | specific factory parts number guide. This is certainly a |
| built to meet. | | | | winning set of reference books for the classic car |
| And any other descriptions unique to that engine | | | | restorer. |
| suffix code. | | | | |