Shoudn't be too tough a job, but may be hard to find a shop that knows how to do that kind of thing. That isn't your normal mom and pop style shop kind of thing. Really just need to ensure the tip that comes in contact with the top of the valve step contacts it and stays near the center. You don't want it to contact the center, then roll off to the side. Know what I mean? You cold bolt on the shaft with either your stockers or rollers, whatever you plan to use, have a stock length pushrod in the hole, and see how it contacts while turning the motor over by hand. You may need an adjustable pushrod checker, but may not. Have there been any changes made to warrant the different lengths? (excessive milling, roller rockers, odd valves, etc)
