Duke:

What engine has cast in place valve guides?

Even Chevrolet used pressed in valve guides on their old (pre 1962) six with valve seats ground directly into the cast iron head!

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!