autodoctor911 wrote:most of the top end pushrod engine roller cams stuff for circle track and road racing has gone away from link bars anyways. Keyed lifters and a slot in the bore do the trick without any external hardware.
I have think about that before, but it will be a very expensive modification and will take some special made lifters for it, for the kind of power advantage it could deliver, my guess it will be a waste of money, just like the roller rockers and timing gears!