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QUESTIONS? GIVE US A CALL! 1 (765) 378-4908
Open Monday - Friday 9A-4:30P EST
We're closed on major holidays.
PRI Booth 2435 (December 7th-8th)

Harness order lead time is estimated to be 7-9 weeks from date of purchase.
All other items typically ship within 3-5 business days unless specified otherwise.
Speartech will be attending PRI December 7th and December 8th @ Booth 2435
We will be out of office during the 7th and 8th of December.

LS and LT Retrofit Specialists
Call to order today

Home > Gen IV LS / Vortec Harnesses > Speartech Standalone Harnesses

Speartech Standalone Harnesses

All pricing shown is for our default harness layout which is a 42" long harness that originates off the passenger side rear head. Custom layouts are available for an additional fee. Call to order a custom layout harness.
If you all ready have an ECM, TCM, and throttle pedal for your swap project, or prefer to find the parts on your own, then we offer our Speartech standalone harnesses by themselves.

We have been in the business for over 20 years perfecting the process of LSx harness building to ensure an accurate fit, quality appearance, and trouble-free operation. All harnesses are built in house, on an actual engine and test ran with a GM Tech 2 diagnostic scan tool hooked up to ensure proper functionality before shipping.