Have ordered AFR 205 heads + FM13 cam for LS6 upgrade. Engine sounds a bit loose, think its the rockers however there is no performance loss. Would it be a good idea to get a stronger than stock rocker set now or watch and wait ?

If so what set would you recommend ?

Cheers for the advice in advance
Rob

 

Did you check pushrod length?

If so, what is the preload on your lifters set at?

My guess is you need a slightly longer pushrod....

 

Its totally stock at present so god knows. I have hardened pushrods coming with cam and head upgrade so might not be an issue after installation

Cheers
Rob