Hydraulic rollers are the way to go if you've got the extra money. More lift and the valves can be held closed or open for a more optimal length of time to facilitate filling/emptying the chambers. In other words, the steepness of the lobe incline can be more radical because the roller lets the parts move against one another without friction. The BIG payoff is in lift and lobe shape and maximum air/fuel charge in the cylinder. There is just no arguing with it.
Shouse
- Larry
And no worries about a flat cam lobe on first startup.
