.515 lift?? i hope it has a short duration or its gonna smack the piston unless you clearance the top of the piston,
the valves are always the same "height"
my cam is a .460 lift and i had to clearance the pistons
20R/22R - Stage 2 Camshaft
4WD / Pre-Runner / Hot Street 2WD (1500-5500 rpm)
Modified Carb or Throttle Body & 1 1/2" Header
Intake Exhaust
Valve Lash .008 .012
Valve Lift 460 460
Advertised Duration 290° 290°
Duration @ .050" 240° 240°
Lobe Center 102° 118°
your cam
20R/22R - Mild Stage-2 Camshaft
4WD / Pre-Runner / Hot Street 2WD (1500-5500 rpm)
Modified Carb or Throttle Body & 1 1/2" Header
Intake Exhaust
Valve Lash .008 .012
Valve Lift 500 515
Advertised Duration 262° 262°
Duration @ .050" 234° 234°
Lobe Center 106.5° 108.5°
due to the lobe centers being offset and the short duration you'll probably be ok with piston clearance but you need to double check that AND valve spring bind and valve stem seal clearance
