Up for sale is a complete set of factory GM 6.2L LT1 Direct Injection heads that have been CNC ported by us at Xtreme CFM Cylinder Heads. No core charge required, this one set that we have is an outright price. As you can see by the pictures it is clearly shown how aggressive we are with our portwork and that is the very reason why we are making more power with our ported heads than others. Most will not show their portwork like we do. These heads are fully cnc ported, intake runners, exhaust runners and chambers all have been reworked to extract the most power out of these…