Necessary parts for a rebuilt (complete minus new rods) ran around $5000 a couple years ago when I priced it. New rods will add quite a bit if you have a bent one, only available in complete sets (new ones are considerably tougher than the old ones).

Not gonna be cheap, sadly.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!