Anyone have any issues with the stock gsr valvetrain giving up on them? If so, how much lbs were you boosting?

 

yes it will work fine as long as you dont rev higher than the stock limit and dont use any other cams than stock.

 

If the motor isn't built and your not revving past the stock redline you will be fine.

 

bump for more opinions. anyone ever hear of valves floating on a boosted motor?

 

yes it happens when you over rev on stock springs and retainers. dont be cheap. Talk to Earl on HT and get a set of Supertech springs and retainers they dont cost that much.

FYI valves can float on any motor.... boosted or NA