Whose running stock rockers with over .600 lift?
04-11-2009, 06:04 PM
#21
jarrod, i think you have your answer. its more of a duration/rpm than it is a measure of lift when thinking about replacing stock rockers. i doubt you are wanting to go beyond 7500 rpms in any motor you build.
if you do, then you need to look at big dog morel lifters, big springs, and jessel shaft mounter rockers. - that stuff cost more than my short block lol
if you do, then you need to look at big dog morel lifters, big springs, and jessel shaft mounter rockers. - that stuff cost more than my short block lol
04-11-2009, 07:27 PM
#22
jarrod, i think you have your answer. its more of a duration/rpm than it is a measure of lift when thinking about replacing stock rockers. i doubt you are wanting to go beyond 7500 rpms in any motor you build.
if you do, then you need to look at big dog morel lifters, big springs, and jessel shaft mounter rockers. - that stuff cost more than my short block lol
if you do, then you need to look at big dog morel lifters, big springs, and jessel shaft mounter rockers. - that stuff cost more than my short block lol
04-12-2009, 07:44 AM
#24
but that isnt to say you (dad) has a bad part in there. in any event, if the stock stockers or the stock lifters need replacement, i would replace them with new stockers and the ls7 lifters (stock replacement).
we just have to get your dad's car to kyle and have him look at it. or he can take it to futral, which isnt THAT far away
04-12-2009, 10:05 AM
#26
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Ironic you asked this question. I was going to ask the same thing. The latest issue (May 2009, page 66) of GMHTP has an article that says the stock rockers have the possibility to stab the top of the valve when pushed beyond .550" lift... and anything over .550" lift should be replaced with a roller tipped rocker. It also says that larger than that lift applys too much lateral load on the valve stem and guide.
Hmm...
Hmm...
04-12-2009, 10:15 AM
#27
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I saw that too. I ran stock rockers for 3 years then I put this my new motor together turning 7500 rpm so I bit the bullet and bought the yella terra. I would rather pay $400.00 for rockers then have to rebuild a whole motor if a rocker goes bad which by the way I cant afford at the moment.lol
04-12-2009, 10:19 AM
#28
I saw that too. I ran stock rockers for 3 years then I put this my new motor together turning 7500 rpm so I bit the bullet and bought the yella terra. I would rather pay $400.00 for rockers then have to rebuild a whole motor if a rocker goes bad which by the way I cant afford at the moment.lol
04-13-2009, 11:37 AM
#33
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i brought up this topic before:
https://ls1tech.com/forums/generatio...k-rockers.html
after talking with Tony from AFR... he suggested me to get a set of the Yella Terras... just food for thought
https://ls1tech.com/forums/generatio...k-rockers.html
after talking with Tony from AFR... he suggested me to get a set of the Yella Terras... just food for thought
04-13-2009, 05:07 PM
#36
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.59x lift and two of mine came apart on about my 10th pass 6600 rpm shifts. Sent them off to Harland and good so far.
Jay
Jay
Last edited by ls14jay; 04-15-2009 at 04:49 PM.
