In regards to a 340, and I thought I'd heard there was a right and left rocker arm. When I took the 340 apart, I noticed that some of the rockers looked like they were not sitting square on the valve tips, and the pushrods were very close to the guides, almost touching. I'd like to put them back together properly, can anyone tell me or guide me to a drawing of how they go together. When I built my 340 stroker a while back, and put my roller rockers and spacers on, there was no movement at all between the rockers. However, this is not the case on this factory 340.

Thanks,

Will

they are off set a little

and go on the shaft as left and right offset per cyl

so on the shaft it will have a left/right rocker per cly, off set the correct way to line up on the valve tip

should be in an engine manual

They should be stamped with an L or an R or Lt or Rt. Put the left on to the right of the right one. Also remember to install the rocker shaft with the notch on the end down and forward on the left side and down and to the rear on the right side of the engine for proper oiling to the top.

Thanks guys, I thought there was a difference
However, the problem is that I see no left or right indications at all on the rockers
And I believe them to be the original stamped rockers.

Also, I almost forgot, my rockers have slop between the spacers under the bolts, and I noticed in the picture that yours do not, any thoughts?

Look at the picture. Where the pushrod cup is located in the rocker, to be specfic. The "L" rockers have the cup biased to the left and the "R" rockers have the cup biased to the right.

As for slop, all the factory ones I have messed with had some slop. But the angle of the pushrod will take up the slop in operation. The pushrods tend to push the rockers apart.

Understand, thank you. I just put mine on, and that's how I installed them, the pushrod cup towards the left went on the left, and right went on the right. Glad to know a little bit of slop is not a big deal, thanks

Will