Exclusive Access: Unlock the LS Swap Secret!

How to Get Your LS Engine Swap Up and Running!

Haltech Nexus Rebel LS Gen 3 and Gen 4 ECU Kits make getting an LS engine up and running easier. The all-in-one design combines engine management, wideband O2 controller, data logger, and a Wi-Fi module in a single unit. The pre-labeled, drop-in wiring harness connects to existing factory LS sensors for a seamless installation. The modular harness design even allows you to mix and match throttle, alternator, and fuel injector types without cutting or patching in the proper connectors. Add a Haltech Ti4L Transmission Interface Kit and you can run a GM electronic overdrive automatic transmission.

Put a Better GM 4L65E Transmission Behind Your LS Engine

GM’s 4L65E is a very popular transmission for LS engine swaps. Put a good one behind your LS with a GearStar Level III or Level IV 4L65E Transmission. Designed to handle 500 to 600 lbs.-ft. of torque, each transmission is built by a single tech from start to finish with high-quality, American-made parts. GearStar even custom-builds Yank billet torque converters for their transmissions, and dyno-runs every transmission to confirm line pressure, shift points, and downshifts as well as converter stall speed and lockup operation.