413 (401 + 0.060") has been running good but I started noticing a "delay" in developing oil pressure upon first starting it up sometimes. Most notably when hot and upon a restart after 20 minutes or so. But it also started to happen in the morning (cold) the last few days. This started about 2 weeks ago and got progressiely worse until today. Got home changed the oil filter (to AC PF-2), thinking the filter may have been an issue. Upon restart, nothing (clacking like crazy) and this time will not start pumping.

Will drop the pan tommorow, thinking the P/U may be comprmised somehow??

Matt, I have been running the relo kit for 4 weeks now. Hot oil pressure is/was 20-24 PSI at idle, running @ 50 - 60 PSI (hot @ 1500 - 2000 rpm). Once it starts pumping oil, all seems well. No bouncy guage, good pressure....nothing abnormal compared to the last 12,000 miles.

Any other suggestions guys?

Thanks in advance for any thoughts.