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Bolt on ls7 rollertip rockerarm

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Old 07-04-2018, 07:39 PM
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c5racr1
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Default Bolt on ls7 rollertip rockerarm

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Old 07-04-2018, 08:45 PM
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Josh B.
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The stock LS7 rocker is superior for 99% of the combinations out there.

https://www.briantooleyracing.com/ch...-12579615.html
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Old 07-04-2018, 08:48 PM
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So you have not tried it? It looks nerdy much like the stock design with an adjustment for the pushrod and a roller tip. Thinking about a solid lifter cam and this may be an alternative to a shaft mount.
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Old 07-04-2018, 08:56 PM
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I also hear that TSP is developing a roller head pedestal rocker. But neither of them are going perform like the stock rockers in terms of stability or longevity. People can spend $1500 on fixing a problem that isn't a problem. This particular rocker design would only really benefit class racers who are required to use stock heads with pedestal rockers and want the ability to adjust lash. A clean sheet approach to a valve train people are better suited with rockers such as Crowers or T&D shaft rockers.

So the choice is really stock rocker, or Crower shaft IMO. And going too aggressive with the factory pedestals in terms of spring pressure and RPM can lead to some bad results. Something addressed in a shaft system where the loads are distributed.




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Old 07-04-2018, 09:12 PM
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What Josh said.
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Old 07-04-2018, 09:43 PM
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That is the t&d rockers.
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Old 07-04-2018, 09:46 PM
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Here are the T&Dís Iím referring to.




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Old 07-04-2018, 10:09 PM
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Josh those are nice. Aluminum or steel?
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Old 07-04-2018, 10:14 PM
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Originally Posted by Che70velle View Post
Josh those are nice. Aluminum or steel?
Thanks. Theyíre steel.
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Old 07-05-2018, 08:27 AM
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Wow...sexay.

How much stiffer of a spring do you need to run to keep those under control vs stock?
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Old 07-05-2018, 08:49 AM
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Originally Posted by Apocolipse View Post
Wow...sexay.

How much stiffer of a spring do you need to run to keep those under control vs stock?
Such a vague question, since you would not be running those on a stock setup, and spring pressure will depend on a lot more than just rockers.
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Old 07-05-2018, 10:05 AM
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Iíve seen far more negative and less reliably with roller tips vs the stock design. Not sure why folks keep dropping 100ís when the stockers do just fine.
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Old 07-05-2018, 11:10 AM
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Originally Posted by JesC6Z View Post
Iíve seen far more negative and less reliably with roller tips vs the stock design. Not sure why folks keep dropping 100ís when the stockers do just fine.
People like to spend money, and fix non-existent issues by causing more issues. That way they can have a major failure from a new issue caused by the spent money, so that it can never fail from the non-existent problem.
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Old 07-05-2018, 03:22 PM
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All this and more can be yours for the low, low price of only $1399.95. But wait, there's more, call in the next 15 minutes and I'll throw in this can of valve float....absolutely free.
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Old 07-05-2018, 03:37 PM
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Are those your T&D's Josh?
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Old 07-05-2018, 03:42 PM
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Originally Posted by MTPZ06 View Post
Are those your T&D's Josh?
Yes sir
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Old 07-05-2018, 03:44 PM
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Originally Posted by Josh B. View Post
Yes sir

Nice! Wasn't sure if you had pulled the trigger, or if you were still window shopping.
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Old 07-05-2018, 04:48 PM
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This is why I don't like the stock rockers, what I call the bearing surface, the actual contact point on the rocker is not consistent across the surface of the rocker with the valve stem , examples of the rockers from my Z06 with 9,200 miles on them. And the witness marks on the intakes show no resemblance to the size of the lash cap diameter.



And the exhaust rockers.



The Crower Shaft Roller tip rocker set up.



My opinion is the off set of the valve stem centerline to the push rod centerline allows for the trunnion bearing clearance to let the rocker twist off the centerline with the load.

In addition, if you see something wrong with the shaft rocker setup, this is not what is in the motor now, don't panic.
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Old 07-05-2018, 05:16 PM
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And? So you don't like how they look, a part you never see, so spend thousands of dollars on something else? Follow through with why that is actually bad, and why it would need to be fixed, because "I don't like how it looks" isn't a good idea. These are not wheels or stickers.
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Old 07-05-2018, 05:27 PM
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I agree with Unreal. The wear pattern seems the least bit concerning, the part is hidden from view. They flat out work, even on most HCI combos. If I ever use my Mamo heads on another LS7 I'll be swapping the pedestal adapters on and using new stock LS7 rockers and won't look back.
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