Quote:
Originally Posted by Z OH 6
Yes, the pumps have been updated a few times, but anything from 2019+ is safe.
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I traded my '17 ZL1 for a '23 5BW in May. My ZL1 was from the first production run with a build date of 10/20/2016. The oil pressure at idle when warmed up was in the low 30s, usually 31-32 psi. On the Blackwing, it's in the upper 30s, typically 37-38 psi. Shows something was definitely changed in these later LT4 engines.