5.9L Magnum build with questions

Did it run before being torn apart?

I'd have been tempted to leave it alone.

114,000 is between "broken in" and "seasoned" on a Magnum.

Mine runs just as good at 167,000 as it did when I bought it at 30,000.


Lunati has a roller cam with a 1.6 rocker ratio lift of .517

Everything I've read says the theoretical max lift on Magnum heads before you need to mill the guide boss is .520

IIRC there is also a cam available with .513 lift.
I was tempted to run it as is as well, the bores looked perfect and it was an untouched relatively low mile engine. That’s really why I figure I’d throw a cam in it and thinner head gaskets to try and get more RPMs and some more power out of it. The bearings did show some wear so thats why I’m replacing them. I could have ran the original rings, but I have a hard time slapping them back in when I can clean them and file fit new rings while its all apart. I’m still having a hard time reusing the roller lifters, but I think I will after reading so many successful stories of people reusing them.