Little Facebook find on cast or forged crank ID.

I posted it for guys that are leaning, and want to learn. At 67 I learn something new probably everyday. I spent three hours on the internet yesterday learning about LS heads. Keep in mind a “hot rodder” is born everyday and we get new members constantly. Wouldn’t YOU want to possibly teach someone something??? We are the past, they are the future.

Like I said, not trying to be "that guy". I was wondering if there was something new. You know, because I want to learn from you guys. Posting this stuff is great.

On that thought process, I wonder if there could be a "documentation" thread for stuff like this? Something categorized etc.