cool score on the engine . I think the alum 5.3 is the same as all the others so parts should be easy to get. Go to ALLDATADIY.COM they have the serivce manuals online for vehicles. Its worth the 30bucks or so for a year. Just buy a subscription for a late model truck with a 5.3 and you will have all the diagrams, electrical etc.. you will need. Good luck.