So what i am doing is taking out my 5.3 and installing a 6.0 longblock with the all my 5.3 stuff. My question is will i have more hp and tq with a 6.0 longblock rather than the 5.3 Lb?? O yeah its i think an 02 or 03 6.0 with 317 heads i got goin in a 2000 RcSb Silverado.