SBC exhaust valve spring retainers

[67ragtp]

I would leave them out, check the installed hieght for cam/valve spring specs and install the new retainers as you would on the intake side. The rotators add valve train weight and really have no buisness on a motor thats going to turn a reasonably high rpm.

I beilieve there intended purpose was to distribute heat evenly around the exhaust seat.

Cant hurt to pressure check your valves, if you have the heads off, to make sure there sealing tight.

Rich