P9204 Image Large
|
The remaining step is to install the new Crane roller rail rocker arms. We offer this comparison of what roller rail rocker arms are versus nonroller rail rocker arms. Basically, the only difference between a rail rocker and a non-rail rocker is the small rail on the end of the roller tip of the arm (arrows). With the use of a rail rocker arm you eliminate the need for a pushrod guideplate. On older small-block cylinder heads there is a small hole that the pushrod fits through. This is essentially a poor man’s guideplate. With newer cylinder heads and bigger pushrods, that small hole has been eliminated and is now a groove, hence the need for a guideplate to control the pushrod to keep the valve spring and rocker arms from becoming loose and wobbly. You can also use roller rail rocker arms on older nonrail rocker arms if you simply remove the stock pushrod guideplate. View Related Article
|
|
|
|