I had to work today and it was nice out so I took the gvr4 to Manhattan. I recalled last night one of the lifters was making a slight tapping sound. I figured it needed an oil change which i'd do later today or tomorrow. So, i hop in the gvr4 this morning and it was still making a slight tapping sound. Halfway into the trip this morning on the LIE in Queens i was getting some serious knock. Once i hit any boost it'd immediately get 43 counts. Any changes on my afc didnt make a difference. I get to work no boosting at all. Get out of work. Go the garage and start it up and sure enough it was clacking away. Now i'm thinking it's definitely a bad lifter and i'll swap it out when i get home. Five minutes into my ride home the noise went away and i'm not seeing any signs of knock. Now i'm scared. I get it home without issue and once it cools down i pull the valve cover and see a rocker laying on its side with 2 halves of the roller laying next to it. Next thing i see are the needle bearings laying around the head.
I pulled the oil pan and all together I found 15 needle bearings. Does anyone have a clue as to how many there are total? I'm curious if i'm missing any.