Engine Decode?

Looks like a '75 318. The 973 casting head should have come with 1.78" intakes and 1.50" exhausts so maybe someone reworked those heads. I've seen them with and without the smog ports drilled. Nothing special about the engine unless special work has been done to it. Probably a cast crank originally unless it came out of a manual trans truck......what else would you like to know?