Hey guys, my project Camaro is in the parts stockpiling phase. STILL....So I have my Livernois Stage II heads, Comp Cams XR 275 Hi Lift cam, and Comp Magnum Roller Lifters. This covers my top end pretty well but I'm looking at roller rockers and would like to know if I should stick with stock ratio or move up?

My cam is .566/.568 lift and was picked to be drivable and torquey. Would stepping up to a 1.8 ratio rocker make sense? Is the extra lift that the step up would give measurable performance wise?

I am going to get hardened pushrods, I'm waiting until the setup is ready to go on then I'll measure pushrod length. Thanks again guys and gals, any help is appreciated! My checking account is getting a workout!!!

 

I would stick with stock ratio and get some yella terra roller rockers.

 

^^ I've seen the Yella Terra come up in posts, what makes them a better choice than say Comp, Crane, Scorpion, etc. ?

 

I would stick with the stock rockers. If you really want to upgrade them, send them to HS to do their thing to.

 

I would go Yella Terra as well, the stock rocker wipe pattern stinks and with the Yella Terra's, if set up correctly, your wipe width will be very narrow. My AFR's came out with a 0.045" wipe width that is dead center.

 

I am also looking at full roller rockers for my 01 Z28. I have read a lot about the Yella Terra, but how do I find them? I assume that the Yella Terra name is a model name - so what is the brand name, or is there a web link I can go to? Who sells them?

Thanks

 

What is the lift on that cam??????

 

New Era Performance carries them. Yella Terra is the brand.

 

Thanks!

 

Note if you get them, instructions stink. Use the shims to adjust the wipe, then measure for pushrod length. The instructions seem to tell you to use the shims to adjust lifter preload which is wrong.

 

Check out the Comp Cams #1500 system.

They are available in different ratios.

 

We have the Yella Terra rockers in stock and on sale right now if you need them , $385 shipped . You can order them online at www.neweraperformanceparts.com .

Mike

 

Great price, and New Era was a big help to me after the sale.