I'll echo previous statements that rebuilding a head on a broken lower end is seemingly a waste of money.

That said, I would recommend a 606 HG to get the MLS.

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http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

I seem to remain as systematic as ever so farat 70. Just slower to initialize and get a job wrapped up. Twenty years ago if a load of parts came in for one of my cars chances are they would be installed in the next twenty four hours. Now I may not even get to it for a week or so. Results in an almost continuous line up of things to be done.

Side note to keep shavings from dropping in liberally coat the tool with grease so as the tool cuts the threads the shavings stick to the grease. A tech at Porsche showed me that trick many years ago when I threaded in the wrong sized spark plug. Then followed it up with a Helicoil.

Mark

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91 300GD SWB with transplanted 87 OM603 turbo motor

I've heard of using oil. Great advice. I just rebuilt top of injection pump. One of my torn up thread shavings from the prechamber had wedged itself on the backside of the 32 tooth nuts. It dropped into the pump and was hard to retrieve.