Roller Rockers 1.5 vs 1.6

See Garrett's post #2 when he talks about measuring clearance. That is what I was talking about The piston can not come any closer to the valves than at TDC and the valves cannot come any closer to the pistons than at maximum lift regardless of when maximum lift happens. Cam timing, whether ground in or adjusted at the timing set, cannot make either measurement change more than it's maximum. For instance, a cam with .500 lift and .100 P/V clearance at TDC will never get closer than .100 regardless of cam timing. That was my point. Because of valve timing, if the valve opens before or after TDC, the piston will be further away from the open valve because it is either not at TDC or has already passed it and is traveling down. That was my point. Post #2 made the point that v/p clearance should be checked especially when adding lift with a 1.6 rocker.