Well, I got this head from a junk yard. It was removed by others and left next to the car. I bought it not noticing the cracks between the valves in 3 cylinders. May be it was the reason that it was left there. I decided to challenge myself and pressure test the head for fun. I used coins to block all coolant passages with JB weld, block the big coolant outlet by putting a plate there and screw the hose connector back on. Actually it is quite easy to do and spend very little time. Submerge the head in water and pressurize the head to 50psi. NO BUBBLES. It also holds vacuum if I pump it with a vacuum pump. All in all, I think it is good. The only shortcoming is I did not use hot water. What do you guys think? Good to install?

btw: you can notice the cracks between valves if you look closely. It doesn't seem to matter in this case, contrary to conventional beliefs.

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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.