I recently acquired a 09 l33 with the notorious lifter issue. I am planning on using the engine in my 87 ttop with 411 pcm. I have the lingenfelter conversion box. Also I am planning on using an 02 ls6 cam as I am turbocharged. Question is does the front cover have to be changed from the truck style to the ls2 cover also? I have the proper cam gear, valley cover, and ls7 lifters and trays. Anything else needed? Thanks