Note to future self: When removing Cylinder #8 Intake pushrod, allow 2.5 hours to remove and refit clutch master cylinder which obscures this one and only pushrod from removal in the vehicle. #modifiedcarlife
I replaced all 16 pushrods with slightly longer units to increase the lifter preload. The hydraulic lifters were only on the verge of pumping-up using the LS9 cam and stock pushrods with it's 1.25mm smaller base circle. At least accessing the LS valvetrain is super easy. Just a few bolts and the coils are out. Four more and the rocker cover is off. Then it's just a matter of replacing each pushrod in turn, rocker-by-rocker:
A couple more pics from Winton - That Renault was seriously quick in the corners. Had some great fun with that VZ SS ute, lol.