O.k. here are the two things you asked for, i can also give you the entire process on removing and reinstalling the head if you so wish, so let me know, all these are for vin 6 engines.
o.k. no problem.
CLEANING CLEANING-CYLINDER HEAD CAUTION: Do not wire brush head surface while fuel injectors are still installed. Fuel injector damage can result.Clean the carbon from the injector nozzle seat with a nylon or brass brush.Scrape the gasket residue from all gasket surfaces.Wash the cylinder head in hot soapy water solution (88°C or 140°F). After rinsing, use compressed air to dry the cylinder head.Polish the gasket surface with 400 grit paper. Use an orbital sander or sanding block to maintain a flat surface.CLEANING-CROSSHEADS Clean all crossheads in a suitable solvent. If necessary, use a wire brush or wheel to remove stubborn deposits. Rinse in hot water and blow dry with compressed air.CLEANING-PUSH RODS Clean the pushrods in a suitable solvent. Rinse in hot water and blow dry with compressed air. If necessary, use a wire brush or wheel to remove stubborn deposits.INSPECTION INSPECTION-CYLINDER HEAD Inspect the cylinder head for cracks in the combustion surface. Pressure test any cylinder head that is visibly cracked. A cylinder head that is cracked between the injector bore and valve seat can be pressure tested and reused if OK; however, if the crack extends into the valve seat, the valve seat must be replaced.Visually inspect the cylinder block and head combustion surfaces for localized dips or imperfections. Check the cylinder head and block combustion surfaces for overall out-of-flatness. If either the visual or manual inspection exceeds the limits, then the head or block must be surfaced.Check the top surface for damage caused by the cylinder head gasket leaking between cylinders.Inspect the block and head surface for nicks, erosion, etc.
Check the head distortion (Fig. 25). The distortion of the combustion deck face is not to exceed 0.010 mm (0.0004 inch) in any 50.8 mm (2.00 inch) diameter. Overall variation end to end or side to side 0.30 mm (0.012 inch). DO NOT proceed with the in-chassis overhaul if the cylinder head or block surface is damaged or not flat (within specifications).Visually inspect the cylinder head bolts for damaged threads, corroded/pitted surfaces, or a reduced diameter due to bolt stretching.
If the bolts are not damaged, their "free length" should be measured using the cap screw stretch gauge provided with the replacement head gasket. Place the head of the bolt against the base of the slot and align the bolt with the straight edge of gauge (Fig. 26). If the end of the bolt touches the foot of the gauge, the bolt must be discarded. The maximum bolt free length is 132.1 mm (5.200 inch). INSPECTION-CROSSHEADS
Inspect the crossheads for cracks and/or excessive wear on rocker lever and valve tip mating surfaces (Fig. 27). Replace any crossheads that exhibit abnormal wear or cracks.INSPECTION-PUSH RODS
Inspect the push rod ball and socket for signs of scoring. Check for cracks where the ball and the socket are pressed into the tube (Fig. 28).
Roll the push rod on a flat work surface with the socket end hanging off the edge (Fig. 29). Replace any push rod that appears to be bent.INSTALLATION WARNING: THE OUTSIDE EDGE OF THE HEAD GASKET IS VERY SHARP. WHEN HANDLING THE NEW HEAD GASKET, USE CARE NOT TO INJURE YOURSELF.