Life is like a box of chocolates....L9h engine

[ckeister]

FYI, they did away with the oil level sensor in the oil pan at some point. My 03 has it, the 2014 does not.

It's actually pretty common for the L92, L9H and L94 to consume no oil between oil changes, even approaching 200,000 miles. With hone marks clearly visible in the cylinders. I'd be more inclined to think they had a catastrophic loss of coolant and didn't shut it off till it was too late. That can happen very quickly if that tee connector breaks at the firewall. By the time the gauge says it's overheated it's way too late.

OEM GM oil pan gaskets have known issues with leaking oil, not surprising they had to replace it. It's the one gasket on the engine you definitely want to go with the Felpro. (I use Felpro exclusively on all my builds, including their head gasket. ARP head bolts as well. Not the studs.)

Could be......well never know though. Affirmative on Fel=pro they have always done me right and when I did the oil pump on my rig, I immediately saw the improvments fel-pro made on the oil pan gasket. I got a set of head gaskets from Brian Tooley and Mahle exhaust gaskets but everything else is fel-pro. Got ARP head and exhaust bolts as well.

 

[petethepug]

Glad you’re giving the ankle a break and have an extra set of eyes on the rebuild. Finding a matching #’s L9H from the other truck is a big plus.