Right now it's going to be the 5.3L you see in the above pics. Mods will be decked heads, ls1 intake, z06 cam and 1-3/4" custom headers. With these mods at 10.6/1 compression. Lilqik (David) has ran the number and it looks to be about 500hp and 550tq. But I still have a while to go. I have built the firewall, half of the tunnel and one floor pan.