Cylinder Head: Inspection
- Thoroughly clean and check mating surface of head and block. Check cylinder head for cracks, nicks, burrs or damage. Using a straightedge and feeler gauge, ensure cylinder head and block warpage does not exceed .003" (.762 mm) in any 6" (152 mm) span.
- DO NOT machine surface of head or block more than .010" (.25 mm) from original surface. If cylinder head or block is out of specifications, head and/or block must be replaced.