This has been pondering me for awile. We all know the difference between nsa rockers and sa, everyone says not to run guide plates and sa rockers. What if you deck your block or mill your heads, instead of runnin a shorter push rod why not run the guide plates, with the sa rockers? Wouldnt that be the same as running a shorter pushrod? Would this be possible?

 

No, it is not the same. Never use guide plates with SA rockers. If you deck your block and angle mill your heads. You must measure the push rods to acheive the correct rocker arm geometry. Go the Comp Cams website and check their tech tips. There is a detailed guide on how to correctly identify optimal push rod length.

 

SA rockers or guide plates are for side-to-side alignment of the pushrods to keep them from falling out of the rockers. They don't have anything to do with length or geometry.

As was mentioned, don't use both. The Comp online guide has good info on this.

 

what will happen if you use both?

 

Perhaps bent pushrods, or worn area on pushrods where guideplate isn't perfectly aligned with rocker throughout the travel...which leads to broken pushrod(s), which leads to bigger bangs. It's not a pretty sight.

 

damn, guess ill have to buy new rockers after all...

thanks for the info.

 

why new rockers, he's just saying, if you have sa rockers don't use guidplates....if you have nsa's use guideplates.