I have these rods sitting here I got. They are MMR rods made by Manley and are the 4340 Forged H-beam rods rated up to 900hp. 4 of them are blued but a friend that had them before said he had them checked at a shop and made sure all the center lines were still perfect and they are. You can see what looks like fresh hone marks on the big end of the rods so you can see they were checked and all cleaned up. Question I have is that I have heard people reuse these rods and be fine. Maybe not up to 900hp but for a smaller build. I dont have plans on using these because my 32v I am using for my fox conversion is going to be a stock motor so I was interested in selling them but want to be honest about selling them to whoever buys them. I have been a motorcycle tech for over 10 years and we never reused rods that were blued due to the fact of spinning 15-16k rpms plus never saw one that was blued and never spun a rod.