Mr. B

iTrader: (1)

ttt

2001CamaroGuy

iTrader: (6)

They are another option.....the question is how much do they cost. If they are not too much (less than T&Ds and Jessles), the 1.7s might be a good direct replacement for the factory rockers.

T/A Medic

iTrader: (1)

I have them 500 bucks to your door... they kick ***... very high quality... car revs mad now. You dont have to buy valve cover spacers... very good stuff. Same quality or better than jesels... i had both. The jesels i had were not lose on the mount... these yella's are loose like a 2$ hooker on nickle night! <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

T/A Medic

iTrader: (1)

I have them 500 bucks to your door... they kick ***... very high quality... car revs mad now. You dont have to buy valve cover spacers... very good stuff. Same quality or better than jesels... i had both. The jesels i had were not lose on the mount... these yella's are loose like a 2$ hooker on nickle night! <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Mr. B

iTrader: (1)

<img src="http://www.yellaterra.com.au/images/roc1.gif" alt=" - " />

Anyone have experience w/these???

Which ratio for LS1?? 1.7 or 1.8??

Chevrolet LS1 5.7 V8
Camaro, Firebird, Corvette,Commodore,
Super duty shaft style rocker suitable for hydraulic roller camshafts featuring oversize shafts and bearings for massive strength, stability and long life. Simply bolt on to original 8mm rocker mountings and clear standard valve covers. Eliminates studs, guide plates and special pushrods.

Part Number:
YT 6614 (1.8:1 ratio)
YT 6624 (1.7:1 ratio)

http://www.yellaterra.com.au/stealth.php

StevieZ

iTrader: (3)

Did you order direct from them?

Black Sunshine/ 00SS

iTrader: (1)

Anyone have the weight of these, compared to the stock?

Phate

iTrader: (2)

I contacted one of their dealers recently and they couldn't tell me if these will fit under the stock '97-'98 valve covers.

If I knew that they did then I would order a set right now.

Scott

DanZ28

iTrader: (5)

I emailed them the other day and they assured me they fit under stock valve covers and they are clearanced for double springs as well...

Dan

Mr. B

iTrader: (1)

Please post any questions or concerns.. I'll call them landline.

Boosted LS1

I have these for my own engine and checked them for fitment a while back and posted on the BB. I am sure they fit and clear the centrebolt covers, also Yella Terra told me they would fit when I ordered them. They are really nice items.

SStrokerAce

iTrader: (2)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Black Sunshine/ 00SS:
<strong> Anyone have the weight of these, compared to the stock? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It's not really the weight but the stiffness and roller tip that help. On a soild roller it's the ability to adjust lash that helps.

Bret

v8 ute

I have the 1.7 shaft mounted Tella Terra roller rockers and friends of mine (with lower lift cams) have the 1.8's.
They sit right on the tip of the valve and clear the stock valve covers and double valve springs.
They don't have adjustable lash for anyone contemplating solid roller cams.

If you are thinking about which ratio, your biggest problem is too much lift will increase the pressure your springs will place on your hydraulic roller lifters. Once you start going over .600 you start getting into some issues with valve spring life, collapsing lifters (dependant on spring pressure) and coil bind.

<small>[ February 15, 2003, 10:12 PM: Message edited by: v8 ute ]</small>

Mr.RamAir

iTrader: (2)

anybody dyno tested these? wanting to see gains over stock rockers.

horsepower

Here is my engine dyno testing comparison of:

Stock 1.7 rockers
Yella Terra 1.8 rockers
SLP 1.85 rockers
Jesel 1.9 rockers

The results are just what you would expect. The two aluminum rockers trail off at the high rpm because of flex.

- Brian

Chicago Z06

so it looks like the SLP's are worth the cash...

Chicago Z06

your graph is kind of hard to read.. do you have net number differences somewhre i can check them out?

Wes

bparker

These look great!

So you are saying that they for sure clear the stock valve covers?

Phate

iTrader: (2)

Does anyone with a set of '98 or '97 heads have these on a car with the stock valve covers?

Mr. B

iTrader: (1)

Here is the SLP graph. I would think that this isn't an apples & oranges comparison because of the differences in the ratio's.. correct?

<img src="http://www.jailhouse-diary.com/slprockercomp.jpg" alt=" - " />