WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
Measure the inner diameter of valve lifter hole of cylinder head with inside micrometer.
Standard (Intake and exhaust)
: 34.000 - 34.016 mm (1.3386 - 1.3392 in)
Fig 1: Checking Diameter Of Valve Lifter Bore Of Cylinder Head