While I was meandering around the virtual world this evening I decided to see what I could find out about Pontiac heads. You know stuff like what the casting numbers mean and what year and all that. Well I really think I know less now than when I started. YIKES. One guy says one thing on this page and the next says something totally diiferent on the next. Oh well at least I know I can always come to this forum and get the low down on whats what.