I have no solution.
 

I have a 1996 turbo 850. Two lifters making a lot of noise. Only two, they are next to each other on intake side. I checked with a stethoscope. Since it's only two and they are that noisy, I replaced them with two out of another head I had, lifters made noise in same spot, took it apart and they hadn't pumped up. I put all new lifters in, nothing has changed. I have the oil pan seals, but I don't have a low oil pressure light and they tick pretty loud. Only two. Not exhaust side making the noise. Any ideas?
I will do the oil pan seals but I don't think it's the issue. Or all would tick, and it would definitely have a oil pressure light with how loud it is. Ideas?

did you measure your oil pressure? did the original lifters show signs of wear suggesting an oil port may be clogged?