DO NOT GO TO AUTOZONE OR ANY OF THOSE PLACES FOR SPECIFIC PARTS! Autozone sent me the gasket for the big 6, and not my little 6. They told me it was right, but I begged to differ. Then I got my money back. They're good for little stuff, but for the big important things, stick with a good imports place/online.
Three rocker arms later and I still haven't learned my lesson!