340 Six Pack Engine Specs

Hello,
I've been searching online and I can't believe how hard it is to find the factory MOPAR engine build specs for a 340 six pack motor. I even looked in my 1970 Chilton manual and they don't even list it! Does anyone have a factory spec sheet for this motor? I'm looking for specifics as far as compression, cylinder head chamber volume, cam lift, etc. Many thanks!