Lash cap won't work for you because it will be too big around to fit between the self-guide "ears" on the rocker. You need to get rid of those goofy factory exhaust valve "rotator-type" spring retainers and replace them with the same style retainer that is on the intake valves. The rotators have one place -- IN THE TRASHCAN!!! They have no place on any bigger than stock rebuild, don't know who set your heads up but they should have known better.

Not what you wanted to hear, but the only way you are going to make things work.

Another thing you've got wrong is you CANNOT use self-aligning rockers at the same time you are using pushrod guideplates -- one or the other, NEVER both, it will tear things up and bind things up. I would ditch the self-align rockers and the goofy rotators and get the correct retainers and rocker arms for the guideplate set-up. It's either that or keep the rockers you have, remove the guideplates and replace them with a headbolt washer under each rocker stud to equal the plates thickness. You will still need to ditch the goofy rotators!

 

Thanks Eric,i wonder why the heads came with the rotator,i think they came stock that way.
What kind of work is needed to remove the retainers ?
Should i take the head off ???

 

You can change the rotator retainers out with the heads on the motor using the correct valvespring compresser tool. All you would have to do is swap to the same type and size retainer that is on the intake valves ( looks to be just the average SBC non-rotator type), but you will have to put a shim(or shims) under the valvespring to equal the difference in installed spring height between the two different retainers. It might be easier to just change to an aftermarket stock diameter performance spring to avoid all the shimming, but I don't know how hard it is to get the proper parts in your area.

The factory installs the rotator to supposedly equalize seat and valve wear, but they go straight into the trash at rebuild time as the amount they help is sketchy and they are heavy as far as valvetrain parts are concerned.

 

Oh i see,the rotator is a stock thing.-
i have new zz4 springs there
i asked about the crane cams valve lash caps
and they say they will fit the rockers ...
im confused now !
i will get the NSA version anyway.-

 

You may have trouble with coilbind or too much spring pressure using the ZZ4 spring with the rotators as they are spec'ed to be used with standard retainers. I could be wrong as I don't know the specifics of the ZZ4 spring, but if it is better than a ordinary lo-perf stock spring you will want to check for correct installed height and coilbind

 

Even if they will fit(I have my doubts looking at your pics), adding a lash cap will require you to also get longer pushrods for the exhaust too, in order to maintain correct valvetrain geometry.

 

i have this longer pushrods

hmmm about the rotator retainers,yes i have some standard retainers sitting around...wow i think change them will be a mess,what to do if the valve falls ? i have never take one of those retainers out with the heads in place

 

eric maybe the whole thing will be ok if i use NSA rockers since the roller tip is exposed ...i dont have any picture of the cranes
but summit roller rockers shown here :

 

As Ericnova72 said you need to change the retainers and get rid of the rotators + Use NSA rockers. Spring installed height & pressure will not be correct with the rotators & ZZ4 springs.
Installed Height >>> http://www.chevytech.com/3c10o18.html
Rocker geometry >> http://www.chevytech.com/3c10o19.html

 

thanks , right now im hating the guy who did my heads !
Ok i will get rid of thte SA Rockers,i will use the stock pushrods
and get NSArockers,and i will change retainers.-
Damn !
Thanks,there is a long way !

 

Here`s a way you can change the valve springs without worry of a valve falling. Remove the spark plug, cycle the engine where the piston is half way down in the bore on the compression stroke, feed the cylinder with small diameter rope through the spark plug hole, when you have plenty of rope in the cylinder cycle the piston up, when it stops then you can remove the valve spring. When finished changing the retainer move the engine backward to lower the piston back down and remove the rope.

 

Thanks Double ! Good tip !
i have to change my retainers only,now i realize why the guy who
did my heads gave me back all the new zz4 retainers that came with the springs LOL ! Everyday you learn something new !
Thanks for the tip !!!!!!!!!!!!!!!