If your Ecotec and L67 V6 needs more grunt to run all the added accessories you've fitted then you're going to need an LS Alternator. Our kit relocates the alternator to where the A/C compressor usually sits and utilizes an LS Belt tensioner as well. The Belt supplied in the kit fits all standard pulleys and is measured up to work with the kit. Underdriven Balancers or different accessories will need a custom belt measured up to suit. If you do not require the belt supplied in the kit then choose "No Belt" in the options tab.
*Note: The Top heather pipe that runs from the inlet manifold to the heater tap will need to be modified to allow clearance. We recommend tapping the hole to accommodate a hose barb or AN fitting to suit and a new line run.