We've seen a couple of those on L engines that have come through the shop. None of them new but they were being used so I assume they worked.

On 4/7/2023 at 2:12 AM, RubenD said:

no oil pressure at idle speeds

This has been discussed many times.. rule is that you just look if the camshaft is well oiled at idle.. then your okay! keep the idle at 650 rpm and your fine.