Destination
Projection annual engine quantity
Arrangement & no. of cylinders
Inclination of head to horizontal
No. of valves per cylinder – Inlet -Exhaust
OHV or OHC
Diameter Surface roughness
Surface treatment
Surface hardness
Surface roughness
Step diameter (if present)
Step height (if present)
Outer diameter
Protrusion
Chamfer length
Chamfer angle
Material
Distance between Valve Guide & Valve Collect
Lower surface when valve is fully opened
Valve Spring
Inner diameter
Wire diameter
Run-out-guide OD to guide I.D
Pressure range
Mean temperature
Max. temperature
Max. camshaft speed
Oil type
Validation
Performance testing