Gen 3-5 Engine Chart
GM Gen 3-5 Engine Chart
To identify which LS engine that you have, you must have the VIN # and/or the RPO code from the glove box sticker. The 8th character in the VIN # identifies which engine you have.
To identify which LS engine that you have, you must have the VIN # and/or the RPO code from the glove box sticker. The 8th character in the VIN # identifies which engine you have.