Stock rockers to 7500rpm?
02-13-2009, 10:49 PM
#2
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HS or YT are both good brands, but i think stockers are the best due to weight, some sponsors will improve them for i think 200$ roughly and they should hold up
02-14-2009, 07:53 AM
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The stock rockers held up just fine in my car right to 7200. As mentioned Harland Sharpe offers a trunion replacement for 250.00. Biggest downfall is the bearin assembly can come apart on the stock units and spread needle bearings thru out the motor. The HS mod eliminates this. I am getting this done to my rockers.
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02-14-2009, 09:05 AM
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I have the stock rockers and shift at 7000-7200 rpms without a problem. Besides the rockers, you need to make sure the valvetrain is setup correctly to handle that kind of rpm.
02-14-2009, 09:22 AM
#9
We tried several aluminum aftermarket rockers on our dyno motor with valve float. At 7500 we had no issues with the stock rockers that were moded at 7500.
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Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
02-14-2009, 09:29 AM
#10
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Originally Posted by DrkPhx
I have the stock rockers and shift at 7000-7200 rpms without a problem. Besides the rockers, you need to make sure the valvetrain is setup correctly to handle that kind of rpm.
Originally Posted by JFM-jr
The stock rockers held up just fine in my car right to 7200. As mentioned Harland Sharp offers a trunion replacement for 250.00. Biggest downfall is the bearing assembly can come apart on the stock units and spread needle bearings thru out the motor. The HS mod eliminates this. I am getting this done to my rockers.
Originally Posted by dubrado
I saw the harland sharp upgrade, I'm thinking of doing that.
Why are you planning to spin to 7500? Single plane?
Jon
02-14-2009, 10:37 AM
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single plane and big cam....morels are going in also. I have 243's w/the sodium filled valves in it right now.
What springs? PRC? patriot extremes? PAC?
What springs? PRC? patriot extremes? PAC?
Last edited by dubrado; 02-14-2009 at 12:06 PM.
02-14-2009, 11:23 AM
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I think PAC does a great job with springs.
Good luck.
Jon
02-14-2009, 12:36 PM
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My advice would be to work with a valvetrain guy who has sucessfully done 7500+ HR LS engines with the correct parts. It's not rocket science, but it is far from throwing together valvetrain parts and hoping it works. Think LIGHT and STIFF not heavy and oversprung.
I think PAC does a great job with springs.
Good luck.
Jon
I think PAC does a great job with springs.
Good luck.
Jon
02-14-2009, 06:31 PM
#15
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