There should be two lengths. One size for intake and other size for exhaust. Six of each size. Exhaust are longer. Here is picture, exhaust are one and intake are two.
When assembling an engine the parts have to go back to there original place in order from where they came. The valve adjustment has a great deal of lash that is due to the use of hydraulic lifters. This is made up for by using different length push rods.
I have attached the valve adjustment directions from a service manual.
You will have to move the push rods around until you get them to have the same general amount of lash. This has to be within the amount of lash that the adjusters can handle.
Let me know if you have any questions.
Friday, October 21st, 2011 AT 3:39 AM