Who makes a good stamped steel rocker arm?

Alan Roehrich · 04-06-2009, 08:47 PM

Those pushrods may or may not be the correct length. Incorrect pushrod length can upset the geometry of the valvetrain, and make the rockers appear to have the wrong ratio. In particular, stud mounted rockers are very easily affected by the wrong pushrod length. Rockers are not truly one ratio to begin with, they change ratio as they travel through their arc of motion. I can gain or lose 0.040" lift by varying the pushrod length.

04-06-2009, 08:47 PM	#4
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,135 Likes: 1,608 Liked 1,915 Times in 430 Posts	Re: Who makes a good stamped steel rocker arm? Those pushrods may or may not be the correct length. Incorrect pushrod length can upset the geometry of the valvetrain, and make the rockers appear to have the wrong ratio. In particular, stud mounted rockers are very easily affected by the wrong pushrod length. Rockers are not truly one ratio to begin with, they change ratio as they travel through their arc of motion. I can gain or lose 0.040" lift by varying the pushrod length. __________________ Alan Roehrich 212A G/S