harland sharp roller tip rockers????
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Teching In
Joined: Jan 2012
Posts: 25
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From: Massachusettes
well im running HS rockers now and gold springs and pple are telling me to take them out asap before i strat wrecking ****....but they been in there for 8000 miles with 600rwhp so i dont know
How are you making those 600 hp? F/I or n/a ?
8k miles wow I guess you've done good so we know those people are full of **** and you can prove it to them lol
BUT now you should pull them out and check for spring pressures OR I would just replace them for piece of mind. Or save for a set. Just my .2 bud
8k miles wow I guess you've done good so we know those people are full of **** and you can prove it to them lol
BUT now you should pull them out and check for spring pressures OR I would just replace them for piece of mind. Or save for a set. Just my .2 bud
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Teching In
Joined: Oct 2007
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Just Installed a Set of HS Non-Adjustable RR I have 97 crate LS1 in my '72 Grand Prix. The '97 head uses the perimeter bolt valve covers. The instructions said to simply bolt them on. The Jegs info said they would fit under the valve covers. The latter part of the instructions spoke about possible clearance problems, valve cover spacers, etc. Anyway, I had to modify the rockers at the back on one side and remove the material above the roller tip to provide valve cover room. The problems areas shouldn't effect the overall strength and the rockers work well so far. However, had I known the whole story at the beginning, I wouldn't have bought'em. I did so due to the reports of the stock rockers coming apart and spreading needle bearings in the engine. There are no other modifications to the valve train and I don't push the car very hard, so I don't expect any problems.
If youre spinning the motor up around 7000rpm I would avoid HS rockers. Theyre heavy on the nose and I had some of them break, twice, on me. Yes, the valvetrain geometry was correct. I also had the patriot gold springs since they came with my TFS heads. The springs dont have enough seat pressure for bigger cams and I saw valve float with them. My issues were solved once I went with Yella Terra rockers and Manley Nextek springs. On my current LS3, Im using PRC .675 springs with stock rockers. Im looking to upgrade the rocker trunions to the setup from CHE. They use bronze bushing with a steel shaft vs needle bearings, so no parts to fail.
I have 97 crate LS1 in my '72 Grand Prix. The '97 head uses the perimeter bolt valve covers. The instructions said to simply bolt them on. The Jegs info said they would fit under the valve covers. The latter part of the instructions spoke about possible clearance problems, valve cover spacers, etc. Anyway, I had to modify the rockers at the back on one side and remove the material above the roller tip to provide valve cover room. The problems areas shouldn't effect the overall strength and the rockers work well so far. However, had I known the whole story at the beginning, I wouldn't have bought'em. I did so due to the reports of the stock rockers coming apart and spreading needle bearings in the engine. There are no other modifications to the valve train and I don't push the car very hard, so I don't expect any problems.
