This is a used Isuzu 4HK1 Cylinder Head. It will fit 2008-10 Isuzu NPR, NQR, NRR, and GMC W3500, W4500, W5500.  Cylinder Head comes complete with valves and valve springs.  However injectors, cams and rocker arms are not included but are available upon request.  Head has been checked for warpage and cracks and deemed road worthy. Cylinder Head comes with a 90 day warranty. Call for pricing and availability at 1-877-564-6307 Press 1.  If you have any further questions speak with our sales team. 05-11-16
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