Ran out of oil now knocking sound when rev up passed 2500 rpm. on 1990 Volkswagen Vanagon

Ran out of oil now knocking sound when rev up passed 2500 rpm. Never owned a vw before so do I have to split cases to replace rod bearing or whatever it is and can it be a bent pushrod or something not so extensive?

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1 answer
To be blunt, you need to start looking for a replacement engine, or replacement car, depending on the condition of the rest of the car.