Hello, Hope someone can help. I had a valve job done on my 93 prelude 2.3 Litre. The machine shop removed the dowel pins to surface the head and I'm not sure what hole they go back in to. Also, I'm not sure how many there are supposed to be, I got 2 back. One last thing, the old ones are pretty beat, is it possible to get replacements for them and if so, where? Thanks, John