Hey if you are looking for a complete L78 engine you might want to check this link out. I spotted it the other day on craigslist and just saw your thread and thought that you might want to check it out. I know nothing about this engine, but could possible go and look at it if you need someone to check it out. Hopefully this helps you out.
http://minneapolis.craigslist.org/an...816018653.html