A guy showed me a ball/ball 5/16 pushrod & on one end for ~ an inch or so it necked down even thinner than the normal 5/16 & even the ball was smaller (I didn't see the lifter cup). the guy said it was from a 74 ish 318 that had 360 heads. I replied that I had never seen a Mopar pushrod like that. I dont have a pic but what do you guys think? Thank you for your time.