Has anyone got 1.9:1 roller rockers on ls1

[Mickyshazz]

Just wondering if they add much performance and if it is a good mod considering it's pretty cheap and I will tune it down the line

[colgf]

Yes , I put a set on my 2005 LS1 CV8Z Monaro, happy with result , car more responsive , idles better , more accellerative . Dont forget you cannot use them on an engine with a modded cam....

[Mickyshazz]

Thanks for the information. I am planning on getting them then an otr and muffles tune. I was just thinking it's a cheaper option then a cam. Have you dynoed before and after