cowboysfan

I got a set of yella terra before the lighter ones. I want to know of the peeps that had valve float what springs were they using? I have PP LS6 cnc heads w/ patriot gold springs that can handle up to 650 lift. I'm running 231/237 .589/.595 112 Comp Cam. do ya'll think I will have float issues? and does/will any company replace my YT rockers with the lighter one's? any help/info will be appreciated.

Thanks guys

cowboysfan

Gold Z

iTrader: (3)

I run the older Yella Terra rockers on a fully built engine with a 609 lift cam and Isky 295 springs. I have never experienced any valve float and my car is raced regularly.

JDM74

Old style Yella Terras here too and no valve float all the way to 6900 RPM on a 228/232 .600/.600 on a 111. Patriot Gold springs.

ls1290

iTrader: (20)

Old version also. 236/245//598/608//115 with Comp Cams 978 dual springs and no problems. Sewing machine affect is pretty bad, but no valve float.

Keith

Ryan02SS

iTrader: (3)

Same here since 03. Patriot Duals and no float up to 6800rpms. After I installed I noticed less valvetrain noise and a much better sweep pattern over the valve tip. Don't be afraid to use them. The people that had valve float were using springs on the limit of being able to control the cam's valve events.