Different 318 casting.
Hi there. just found this 318 block , supposedly a 67.Casting nr same as race block but is not . but the casting at the main caps are usually machined and this looks different ,also 5;th cap has a larger oil hole than usually .someone got an idea?
![318.jpg 318.jpg](https://www.forabodiesonly.com/mopar/attachments/318-jpg.1715019392/)