that is true - I had an 85 2.6 and when I went for a stepped up cam, there were 2 listings for 2.6 - mechanical and hydraulic rockers. For mild performance cams, hydraulic rockers are good, but for high lift applications, mechanicals are still the best. There is plenty of information about the debate on which is better on the starquest forums. And just to throw another wrinkle into all of this, if you run 3.0 v6 hydraulic rockers on a 2.6 hydraulic motor, you can get more power due to the 3.0 rockers having a 1.6 rocker ratio, vs the 2.6 1.5 ratio. lash adjustors are the same.