The 4 studs from NL are in and correct. The studs between 1-2 and 3-4 are new and the front ones have the plastic sheath for rust protection. #4 outer look fine since they've been in oil all their lives. I could not find the other 2 with the plastic so I just ordered the rear ones to justify the shipping costs. 5 more studs to order and it'll be ready to torque the head down.