well my motor is now gone the #5 cylinder is f-ed up so rather than to tear it apart and spend alot of time trying to find out why I am in the process of finding a used/new engine for my 02 Chevy 1500. I have the 4.8l with a 4l60e tranny so i would like to get either the lq4 or lq9 engine but i am in. I need to track down a motor for my truck by monday. I am in a panic! I am locate in So. Cal and am calling every where to find an engine at this time! I know I will need to upgrade the tranny but that will come in good time! I just supercharged my engine and would love to stick it on this new motor! ANY ONE WHO CAN HELP ME OUT IT WOULD BE MUCH APPRECIATED! I missed the last sale by minutes for that lq4 damn