Pushrod Length??
Thread Starter
Instructor
Joined: Jan 2007
Posts: 232
Likes: 41
From: Simpsonville SC
Pushrod Length??
Need some input from some of the folks more experienced with valve geometry than me. I did a Vortec swap recently and never checked my pushrod length during the process. I purchased some new stock length pushrods and using self aligning rockers. I decided to go ahead and check it by looking at the rocker arm contact pattern on top of the valve stem. I removed the intake rocker on #1 and covered the valve stem tip with black sharpie ink. Then. reinstalled the rocker and set lash. Bumped the motor over a few times them removed the rocker and looked at the contact pattern. Here's what I got.
http://picasaweb.google.com/Walllparty/PushrodLength#
It seems the contact pattern is in the middle of the stem and thats where it should be correct?
http://picasaweb.google.com/Walllparty/PushrodLength#
It seems the contact pattern is in the middle of the stem and thats where it should be correct?
Le Mans Master
Joined: Nov 2008
Posts: 5,691
Likes: 12
From: columbus oh
..looks good however for real world checking, buy a manley length checker and dial it in...super easy to use and beneficial with new heads as the valves are very close in spring hight ......
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
.....I did a Vortec swap recently and never checked my pushrod length during the process.
......I purchased some new stock length pushrods and using self aligning rockers.http://picasaweb.google.com/Walllparty/PushrodLength#
It seems the contact pattern is in the middle of the stem and thats where it should be correct?
......I purchased some new stock length pushrods and using self aligning rockers.http://picasaweb.google.com/Walllparty/PushrodLength#
It seems the contact pattern is in the middle of the stem and thats where it should be correct?
pattern is AOK And, I applaud you for NOT being a roller-tip lemming. Most street cars do not need any sort of rollerized tip ... they seldom add anything significant to a street car ... and rollerized tips often cause problems for novices who don't properly align rollerized tips w/ valve tips. I'll bet dollars to donuts your rockers & valves will give good, carefree & quiet service for long, long time.
