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  • Standard order lead time for Standalone Harnesses:

    Gen V - 4-5 weeks

    Gen 3 or Gen 4 -1-2 weeks (Several LS3 kits in stock!)

    Need it sooner? Give us a call to discuss expediting. Limited slots available.

    All other items typically ship within 3-5 business days unless specified otherwise.

LS and LT Retrofit Specialists
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LT1/L83/L86 Manual Harness Package (2017+)
LT1/L83/L86 Manual Harness Package (2017+) - Image 1 of 0
LT1/L83/L86 Manual Harness Package (2017+) - Image 2 of 0
LT1/L83/L86 Manual Harness Package (2017+) - Image 1 of 0
LT1/L83/L86 Manual Harness Package (2017+) - Image 2 of 0
LT1/L83/L86 Manual Harness Package (2017+) - Image 1 of 0
LT1/L83/L86 Manual Harness Package (2017+) - Image 2 of 0

LT1/L83/L86 Manual Harness Package (2017+)

$
Choose your options:
Fuel System:
Vehicle your engine came from?(required):
Transmission(required):
Add MAF Sensor?:
Add O2 Sensors?:
Gear Ratio/Tire(required):
Emissions Wiring(required):
Front End Drive(required):
Examples are Holley, Wegner, CVF Racing, Drive Junky, etc.
Product Code: LT1-6L-M-HP-3wire
See top for lead time
Our harness package includes the standalone wiring harness, programmed ECM, and ETC pedal.

For use with 2017+ engine with a 3-wire fuel rail pressure sensor

Due to the complexities and options available, please call or use the contact form to order this product.
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