Generation IV External Engine - harland sharp roller tip rockers????

im hearing these rocker arms are no good and your better off with stock??? and patriot gold dual valve springs arnt worth getting either?

I've never had a problem with either.

Nothing is 100% indestructible, welcome to this hobby of ours.

well im running HS rockers now and gold springs and pple are telling me to take them out asap before i strat wrecking shit....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 shit 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

ya as far as i know they are ok lol, i gotta pull them out and check them, im running a turbo also.

im also running a forged 416 motor, with a cam very close to yours, 243/254-.638/.638-116, what springs and rocker are you using? i also have the trickfow heads

I'm NA and I would not be able to run the patriot golds due to the LsR lobes. I went with comp 925's cause their spring pressures are really good.

My hs rockers has been on for 50k or so with no problems. With that said my friend broke one @ about 30k. I did notice it mine seemed to run a little smoother at high rpm.

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.

I've run 1.8:1 ratio Harland-Sharp rocker arms without issue.

im hearing these rocker arms are no good and your better off with stock??? and patriot gold dual valve springs arnt worth getting either?

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.

True, though I grinded material off the valve cover for them to fit when I first got the HS. But, I would never take any material off a rocker. Even if its still strong material and design wise, it cant be good for balance and at high rpms the weight and force of that rocker arm going back and forth is tremendous.