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 WHICH 'LS' ENGINE DO I HAVE?

Chevrolet's GEN V 'LT' engines can be identified by their RPO code. You can determine the RPO code if you have the Vehicle Identification Number (VIN #) from the original/donor vehicle.

 

  1. Locate the 8th digit of the VIN.
  2. Check the tables below to identify your engine.

*Click on the RPO code below to see more details about that engine.*

GEN 5 (LT) CAR ENGINES
8th Digit of VIN RPO Code Disp. Common Name
7 LT1 6.2L LT1
6 LT4 LT4 (Supercharged)

 

ECOTEC3 TRUCK ENGINES
8th Digit of VIN RPO Code Disp. Common Name
C L83 5.3L ECOTEC3 5.3L
R L8B ECOTEC3 5.3L (w/ eAssist)
J L86 6.2L ECOTEC3 6.2L