Rebuild or not: used BMW engine?

[xvxax]

I meant rod bearings. My fault. I probably won't touch the crank bearings, but I'll check the wear on the crank when I pull the pan, probably this weekend.
The motor was less than $1,200, but I would be bummed to drop a valve in at any time because:
1. I would lose the motor.
2. I wouldn't be able to get home without a trailer, which I may not have next year.

I think a lot of people forget that the 325s were plagued with the same crappy retainers that the m3 got, but I still don't hear about as many 325s losing retainers on track cars. I don't know why that is. RRT has a tool to pressurize the cylinder so they can replace the valve retainers with the head still attached. Might just have the retainers replaced by them... for $100 per hour.

Were the people who had issues with HG issues replacing worn out parts? Like a HG that had failed? Were they using the original head or a spare? Why don't replace the rear main seal? Curious what the situation was.

The rubber in the rear main seal is 17 years old. Seems silly not to unless I'm missing something.

I think I've been talked off the ledge on a full build. Probably just do basic maintenance, check the rod bearings, etc. Even with the cheap motor, my budget has already passed $3,000 for an almost legal STX build, so I may continue to live my life 60 seconds at a time.. Don't let anyone tell you cars are cheap.