LS Swap Stand Alone Wiring Harness

An LS swap is a very popular and affordable engine choice for project cars. One of the biggest challenges can be the wiring, especially in older cars. Karl Kustoms offers a plug-n-play wiring harness solution to take all the guesswork out of your labor of love. This harness includes a fuse block and all the connectors you need to get your ride running quickly and reliably.

Do you want to learn more about LS engine swaps– Check out our blog post here. If you're looking for an LS Crate Engine you can learn more about the history of the LS engines and what we offer here.

Karl”s Kustoms is here to help you make your next build the best it can be, as a top-rated retailer of Chevy performance engines, parts, and accessories, and with over 40 years of dedication to GM performance.

What's Included

Included Connectors: Fuse/Relay Box, Fuel Pump Control, Fan Controls, Check Engine Light, Speedometer, Tachometer, OBD2, Accelerator Pedal and Throttle Body Control, MAF Sensor, MAP Sensor, Engine Coolant Temp Sensor, Alternator Control, (2) Upstream Oxygen Sensors, Crankfshaft Position, Camshaft Position, Fuel Injectors, Manual or Automatic Transmission Control, Knock Sensors

Important Notes

• Harness fits 97-06 Gen III LS-based engines.
• Set up for drive-by-cable throttle body, EV1 injectors, and rear mount camshaft position sensor.
• EV1 to Multec Injector Adapters Included
• Must re-use existing coil sub-harnesses.
• For 4L60E, 4L70E 4L75E Transmissions.
• When using 4L60E or 4L80E transmission you Must have a two-position brake switch....See part# KPPWHBLS. These are
  necessary to allow proper function of the TCC. The brake switch should be closed (not electronically
  connected) when brakes are not being applied and open (not electronically connected) when brakes
  are being applied. This is the opposite of a standard brake switch.
  CAUTION: Failure to wire brake switch correctly can result with the torque converter is unable to unlock.
• Uses LS1 style MAP sensor (for LS3 style sensor you will need our 81033 adapter harness).
• Uses 5-pin MAF.
• For use with GM 9354896 or 12200411 (Commonly known as 0411) PCMs.
• WH1201