What is the best why to identify a pontiac 400 crank shaft?
I need a stock crank shaft for a 69 400 4sp block.
There is a guy here in town selling different years for $100.00 each and I wanted to go look but have no idea what to look for or if I need to have the correct year for the block.

Thanks for any education you can give.

Try this:

http://www.teufert.net/pontiac/cranks.htm

That chart looks accurate.
Have to dig mine out to verify.