I have known many GM engines to go well over 300k. The LS series of motors they currently make are great, many and putting out 1000+ HP on stock internals.
The LNF in particular has forged rods, and crank, high pressure piston oil squirters, channels are cast into the underside of the piston which make oil flow all throughout the piston, titanium intake valves, sodium filled inconel exhaust valves, twin scroll turbo.
Guys are pushing over 25psi of boost on daily drivers. Its a strong motor.
I'm doing the swap cause its what I want to do, simply put... its a project, something for me to play with and I think it'll be pretty sweet when it's all done.
Yep, I've talked to Alex at ACP a few times already, he's been very helpful.