Pushrod problem Help!!
#1
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i rebuilt my engine and my engine builder said that my 7.200" hardened pushrods would work fine with my set up. well today i decided to check and see how correct the geometry is on my rocker arms. i i had checked it against the pushrods and it was like this
![](http://img.photobucket.com/albums/v393/SoxXpupPeT/Img_1440.jpg)
past half more towards the exhaust. so i knew that my pushrods were to long. i pulled out my comp cams adjustable pushrod tool. i thought "ok ill just lower it until its 1/3 the way on the intake side. but when i put my tool in there i found that if i went any lower then .100" from 7.200" that the rocker would bottom out on the stud
but at 7.100" the placement of the roller tip was like this
![](http://img.photobucket.com/albums/v393/SoxXpupPeT/Img_1438.jpg)
just before half towards the intake. closer to where its supposed to be but not 100%.
my question is to everyone is would i be ok running the 7.100" pushrods ? if its still to long then ill be forced to get not only new pushrods but new rockers aswell
but im prepared for the bad news. thanks guys
![](http://img.photobucket.com/albums/v393/SoxXpupPeT/Img_1440.jpg)
past half more towards the exhaust. so i knew that my pushrods were to long. i pulled out my comp cams adjustable pushrod tool. i thought "ok ill just lower it until its 1/3 the way on the intake side. but when i put my tool in there i found that if i went any lower then .100" from 7.200" that the rocker would bottom out on the stud
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
![](http://img.photobucket.com/albums/v393/SoxXpupPeT/Img_1438.jpg)
just before half towards the intake. closer to where its supposed to be but not 100%.
my question is to everyone is would i be ok running the 7.100" pushrods ? if its still to long then ill be forced to get not only new pushrods but new rockers aswell
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
#5
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use that tool.and place the rocker on the stud and mark the top of the valve like how i did and get it to about 1/3 of the way on the valve stem towards the intake
does anybody have any advice for me ?
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#10
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I just did the same thing yesterday. I have the same rockers as you. The head shop also had to use .100 longer valves with my patriot springs. I ran the motor a few times with the stock 7.2 pushrods. The wear pattern was towords the exhaust side but still liveable. I just ordered 7.1's and they should be here today. I think i'll be fine with 7.1 and i think you will be too.
#11
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You need to use a solid lifter or a weak valve spring to check length. Doing it the way you are is probably completely collapsing the lifter so you aren't getting a good reading on length.