Generation III Internal Engine 1997-2006 LS1 | LS6
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Old Oct 30, 2003 | 12:53 AM
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Since I have to pull one of the heads off for repair I have decided to upgrade most of the valve train. I am going to go ahead and pull both heads off and replace the stock lifters with the comp R lifters and have been flirting with the idea of replacing the rocker arms. I have read of some issues with the comp rockers not doing what they say they do and have decided to go the Jesel route for one reason only. For what I do with the car it sees sustained high RPM's for a LONG period of time, so I want to put the best rockers in I can get.

My question about the Jesels is, what other mods have to be done to get them to go on the heads. I know I will most likely need new rods and I will need a spacer for the valve cover. Is there ANYTHING else that will need to be done to get these to fit? Will I need to elongate the rod holes or any other odd ball things that most people dont mention?

Any input appreciated.
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Old Oct 30, 2003 | 08:51 AM
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If you have the cash check out www.katechengines.com they have some sick looking valve covers instead of using the spacers.
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Old Oct 30, 2003 | 09:54 AM
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I just clearanced the stock valve covers to make them work. No spacers.
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Old Oct 30, 2003 | 10:50 AM
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So other than valve covers or spacers there is nothing more that I need to do except slap them on, adjust them and call it a day?
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Old Oct 30, 2003 | 02:17 PM
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Originally Posted by NataSS Inc
So other than valve covers or spacers there is nothing more that I need to do except slap them on, adjust them and call it a day?
Correct.
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Old Oct 31, 2003 | 09:15 AM
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Crane also has a set of gold race rockers for LS-1, they work well and you don't have to clearance the valve covers or anything.
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Old Oct 31, 2003 | 09:54 AM
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watch it with rev springs, the retainers will contact the jesels. This is from personal expierance as it snapped a titanium retainer. All my jesels were eyelashed for clearance
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Old Oct 31, 2003 | 11:42 AM
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I cant remember what springs came with my stage 2 LS6 head and X1 cam. Could this potentially be a probelm?
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