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Chevrolet's GEN 5 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.
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 |
About
Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion needs!
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2029 Route 88
Brick, NJ 08724
ph. 732-276-8589 Mon-Fri: 8:00am to 6:00pm ET
customerservice@psiconversion.com
sales@psiconversion.com
techsupport@psiconversion.com