I'd suggest going to Summit's site. I rebuilt the same motor back in the late '80s, and their catalog(now website) gave parts packages and their output. As you wrote, you want everything sourced to best work together as a package, and companies like Summit give you several options(and detailed description's of what and how) for power and price(and longevity I would suspect), from the crank all the way up to the rockers, and everything in between.Okay, so I was given a 1988 Mustang Lx 5.0, 5 speed. I want to do a complete engine rebuild, but don't want to just start throwing parts at it. I want it to be mostly steetable, but quick. Would appreciate some good input.