Greg, as much as I dig the LS series, from what you have told me about the build I cannot see anything but the old school 327. Yes we can make the LS look old but is kinda like making an old woman look young... yeah its cool but something aint quite right
The 327 fits the build better, you have the 60's dash and keeping the wheels more traditional but bigger. Just my thoughts my man, I will call you later this week or early next week.
Carter