Wire Harness Modifications

You must have the  donor wire harness off of the LT1, LS1, LS2, LS3, LS7 engine undamaged. We reconfigure and tail out what needs to be used, to run the engine and transmission correctly, at full power.

This is a very complete service we offer, the wire harness needs to be in working good order. Computer tuning is also recommended, to match the wiring work that we perform. Our customers use this service to quickly deploy a new modern fuel injected power plant into their sand rails, kit cars, off road race rigs, street rods and 4×4 rock crawler / truck.

You can place the modified wire harness anywhere space and location permits. If you have a required length or drawn up measurements –  email us, we’ll let you know the cost. The above wire harness is the I6 4.2 engine from General Motors.


Cost is based on condition for all used GM wire harness modifications – please give us a call / text / email to discuss the price.