[Z06] Yella Terra rockers
#1
Melting Slicks
Thread Starter
Yella Terra rockers
Hey guy's, I'm installing a set of Yella Terra roller rockers on a pair of the stage 4 heads that I purchased from AHP. My question is there is 2 different flat spots on the shaft the rockers are attached to. This is where the bolt goes through, which side of that shaft points down and rests on the pedestal that the bolt tightens it to. I don't know any other way to explain it.
Also is it normal to have the back of the rocker so close to the head when its mounted? It's like 15 thousandth of space its very close but not quite touching.
Also is it normal to have the back of the rocker so close to the head when its mounted? It's like 15 thousandth of space its very close but not quite touching.
#2
Hey guy's, I'm installing a set of Yella Terra roller rockers on a pair of the stage 4 heads that I purchased from AHP. My question is there is 2 different flat spots on the shaft the rockers are attached to. This is where the bolt goes through, which side of that shaft points down and rests on the pedestal that the bolt tightens it to. I don't know any other way to explain it.
Also is it normal to have the back of the rocker so close to the head when its mounted? It's like 15 thousandth of space its very close but not quite touching.
Also is it normal to have the back of the rocker so close to the head when its mounted? It's like 15 thousandth of space its very close but not quite touching.
And yes they will be very close to the valve cover surface area of the heads, but no worries they wont hit.
Last edited by 2fastz06; 03-25-2017 at 04:05 PM.
#3
Melting Slicks
Thread Starter
Also I didn't mean the rocker is close to the valve cover but rather it is very close to the body of the head itself.
Last edited by pokerpro; 03-25-2017 at 04:04 PM.
#5
Le Mans Master
Here is a video on assembling LS1 style rockers.
#6
Le Mans Master
Here another install how to on a LS1 style YT Rocker, how this helps.
http://www.ls1howto.com/index.php?article=21
http://www.ls1howto.com/index.php?article=21
#7
Le Mans Master
If I were you I would run a small spacer under the valve covers - it's the setup I am using.
I bought a set of Katech covers, if I keep them my spacer set up will be for sale. The YT supplied thicker gasket is a marginal solution, you can and will end up with the rockers brushing the covers (not good).
PM if interested.
I bought a set of Katech covers, if I keep them my spacer set up will be for sale. The YT supplied thicker gasket is a marginal solution, you can and will end up with the rockers brushing the covers (not good).
PM if interested.
Last edited by Dan_the_C5_Man; 03-25-2017 at 04:25 PM.
#8
Le Mans Master
This is the kit that Tony Mamo sold me when I purchased my YT Rockers from him last year.
https://www.briantooleyracing.com/ye...er-yt5132.html
https://www.briantooleyracing.com/ye...er-yt5132.html
#9
Melting Slicks
Thread Starter
Here another install how to on a LS1 style YT Rocker, how this helps.
http://www.ls1howto.com/index.php?article=21
http://www.ls1howto.com/index.php?article=21
The following users liked this post:
Brandon619 (03-25-2017)
#10
Le Mans Master
#11
Safety Car
Double check your "wipe" on top of the valve stem. After I checked mine with one shim I realized I needed a second shim to get it just right, and I had to order them from YT in Australia. Took 2 weeks!
#13
Melting Slicks
Thread Starter
Mine came with the shims.
#15
Le Mans Master
All I can say is with the rubber spacer, the valve cover position is very sensitive, and you will only know if they are touching if you use a mechanic's stethoscope.
Just providing the information, do with it what you will..
Just providing the information, do with it what you will..
Last edited by Dan_the_C5_Man; 03-25-2017 at 09:48 PM.
#17
Safety Car
I had a set and the rockers were rubbing on the pedestal and the rocker cover. .625 lift on an LS7..........LME discovered the rubbing on the pedestals when LMR sent them the heads to be done. They did the required machine work on them and no more rub. So after I did that one of the rollers on a rocker went bad. Had a not too easy time getting YT to cover it. Later decided that I should just switch to CHE rockers and problem is solved.
Last edited by meanjoe; 03-26-2017 at 11:00 AM. Reason: spelling
#18
Team Owner
#19
Le Mans Master
#20
Melting Slicks
Thread Starter
That looks good but your rockers are 1.7 where as the same rockers for an LS7 is 1.8. Just a wee bit bigger.
The following users liked this post:
Brandon619 (03-26-2017)