GM LS2 (D585) COIL PACK SWAP – zshack Mar 25, 2017GM LS2 (D585) COIL PACK SWAP Many of you have been asking how I did my GM Ls2 coil pack swap, so here is my write up on how to do it step by step. Before we get started I thought I would give a little explanation on why this is beneficial to us. In the quest to achieve higher and higher horsepower levels, there c gm coil harness | eBay Find great deals on eBay for gm coil harness. Shop with confidence. Skip to main content. eBay Logo: 4 Pin Ignition Coil Pack Connector Harness Kit GM LS2 LS3 LS7 Engine 6.0 6.2 8X. Brand New. $29. Save up to 5% when you buy more. Set Connector Ignition Coil Wire harness LT1 TPI TBI GM Corvette Camaro Firebird See more like this.