[LS short box]

To Macstaples just let me know if you need help with the LS swap. I've done a number of them.

To Rowdy11. I mounted the ecm and relays behind the glove box. Used a "stock" ecm holder and made a couple of brackets to hold them. Had to mod the glove box liner to reduce its depth. Still have 3/4 of a glove box. My truck has the stock heater box so I routed the LS engine harness over the top of the interior heater box and out thru firewall as low as possible. If you look closely at the pic you can just see the top of grommet just over the back of the right side plastic coil cover. If you are standing in front of the truck with the hood open you can see a small part of the harness. I did same with the chassis wiring harness so you can't see any wires from to back.