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I feel really stupid for even having to ask this, but I might as well swallow my pride.
Reassembling a B20 and realized I have no clue what feeds oil to the head/rockers. The green books pretty clearly show a single passage from the block to the head, and then through the rocker shafts . . . but where is this passage? The top surface of the block has one hole (between cylinders 2&3, on the cam side of the engine) that isn't taken up by a pushrod or headbolt; but I don't see a corresponding hole on the head?
Am I missing something totally obvious here?


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