As previously stated If you replaced the Cam Bearing Caps the Camshaft bore would need to be line bored.
The question is where would you get the Bearings to fit it after the line boring?
How, much line boring would it take to straighten out the Camshaft bore; and would that be too much for the Bearings if they are even available?

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84 300D, 82 Volvo 244Gl Diesel