JakeFusion

iTrader: (7)

The CHE don't have to be installed like the others. They are not an interference fit...

But I would not go with Scorpions. Nope.

The TSP roller rockers seem like good options as well. Being that they are steel and not much heavier than stock, I'd vote them. But they do cost more.

KingColt

iTrader: (2)

Roller rockers reduce friction which equates to more horse power and free moving valves.

G Atsma

If I were running a cam with around .550 or so lift, I would just do a trunnion upgrade. But at around .600 or over, you are running past the point where the rocker won't dig or "scrub" into the valve. Then I would run roller tip rockers. And as was said, the TSP units look good!

SheepDog209

iTrader: (2)

Not to hijack the thread, but I'm going to run the ws6store asa high lift hot cam. I got factory ls3 arms with upgraded trunions. Am I gonna be ok?

tech@WS6store

iTrader: (2)

Youll be fine. We designed the cam to be efficient, quiet, have minimal issues with any guide wear, an still use a high quality beehive to keep the budget down.
There are quite a few different theories floating around about how much lift vs scrub vs loading etc etc and then there are real worlders running every combo you can think of also.
That is the main reason we went .600 lift. Seems to satisfy all the theories so to speak yet not be very aggressive on ramp rate. We could have put in over .600 but then it could be an issue of guide wear...but most other companies stg 2,3,4,5 cams have over .600 lift on either intake or exhaust and nothing is said there. So grains of salt are the best way to take the theories.
The rockers we introduced because they are better than another competitors, already assembled and very cost efficient. You see one post in here where the guy said "i dont want to assemble so ill just go roller" he is somewhat the idea behind em. Or guys that buy bare heads and have no rockers to begin with.
Sorry for the long post

SheepDog209

iTrader: (2)

Thanks!

vettenuts

iTrader: (4)

The roller doesn't roll, it's there to translate the motion, provide a small contact surface and protect what is typically an aluminum rocker arm. The wipe pattern is the area of contact made by the rocker on top of the valve stem as it opens and closes the valve. Typically this should be centered and very narrow. The wider the pattern the less efficient the valve opening and the more guide wear due to side loading. Since the valve spring force increases with valve opening, some prefer to slightly bias the wipe pattern so at full open the contact point of the rocker is dead center on the valve. On my setup, after working with the rockers and the heads on my workbench, I managed to get my wipe pattern centered with a wipe width of 0.045". Here is the write-up I did several years ago >>>>>>>> Link to Yella Terra Wipe Pattern Setup on AFR Heads

FCar2000TA

iTrader: (7)

Why are you against Scorpions? I don't know anything bout any of the rockers, so I'm just asking.

what about Harland Sharp?

vettenuts

iTrader: (4)

Scorpion had a early history of breakage, however I haven't seen any reports on them breaking in years. Harland Sharp are heavy and harder to control. Personally, I wouldn't use the Harland Sharp for this reason.

tech@WS6store

iTrader: (2)

We like scorpion rockers. usually recommend em. easy on budget and made in usa with lifetime wnty. sold quite a few sets this yr alone.

01CamaroSSTx

iTrader: (3)

Get the Straub Technologies bushing upgrade, it will cost around $200. My cam is a 243/251 with over .660 lift and so far I've had no issues running them with LS7 rockers.

tech@WS6store

iTrader: (2)

They are 155 without bolts and 175 with on our site.
Ls7 rocker geometry is completely diff from ls1/2 and the rec port rockers though. Youre still using a flat pad to scrape across the top of the valve though

FCar2000TA

iTrader: (7)

I think I am going to do rollers. I don't have the expertise to install trunions. Still probably won't have money for the heads until tax time. Hopefully I can ship the rockers with the heads, and have Frankenstein install them while building up the heads.

vettenuts

iTrader: (4)

You state you are getting heads and rockers. Heads are one of the most important components on the motor for making power so you really need to decide which heads you plan to get and then decide on rockers, not the other way around.

FCar2000TA

iTrader: (7)

I already decided on heads. I am getting Frankenstein stage 1 243s.

z-maro

iTrader: (18)

Rockers are the last thing to be installed. You can't have the vendor install them when you order your ported heads. The heads have to be torqued down on the engine, pushrods installed, and cam rotated while torquing the rockers in the proper sequence.

FCar2000TA

iTrader: (7)

That I didn't know. I thought the rockers are installed, torqued to a specific ft-lb, and that was that.

01CamaroSSTx

iTrader: (3)

Yes I would like to go to a set of rollers but $3500+ for a set JESEL shaft mounts is more than I can spend right now. Not sure if it would be wise to run LS7 aluminum rollers and if a company offers a set that can be bolted and torqued down like the factory ones can. TSP offers steel shaft mounted rollers and I'm considering this option, and would like to hear back from others that have used them.

Suggestions?

tech@WS6store

iTrader: (2)

Yella terra makes a set of twin shaft ls7 rockers in both adj and non adj. Comes with the extra thick valve cover gaskets also.