WDRacing wrote:Larger filters don't really = better filtration. It means they hold more crap before they become restricted. If you're not going more than 5k between changes then go ahead and use a compact one. Pick a filter that has lots of options and is available everywhere, like the Mustang 5.0 filter. It's a medium sized filter and every maker has something available.
Just my .02 though.
That's exactly what I was going to post.
I'd recommend a Ford Motorcraft FL-400S equivalent. Ford used it on EVERYTHING (seriously, everything from fours to eights) for about twenty five years, and it's a very well-designed filter. They are pretty long, because they were also used in V8s with a lot of oil capacity. If the FL-400S doesn't fit, the FL-910 is a bit shorter, but has crappier (cheap fram-style dome) internal construction.