simpleM3 wrote I resonate with this post. I don't do hype and I feel like BE, although great I'm sure, has too much hype behind them. I'm wouldn't argue BE quality, but the question that really needs to be asked is it necessary to get BE and if so why? Similar to the coilover debate. Yes Ohlins is at the top, but do I need Ohlins if i'm mostly daily driving w/ a few spirited runs here and there, no i don't. Do I need BE on a stock motor with original OE bearings sitting at 117k miles? Doubtful!
Not familiar with ACL or VAC so ill do a little research
because BE:
-came up with the rod bearing clearance for the S65 in the first place
-has published massive amounts of data regarding their bearings
-only people who have measured the oil flow of the engine before/after
-only people that do 100% inspection of the bearings that go out to people
-the only people who have measured and published out of round caps when using regular ARP bolts in the S65. This already came up in the S54 so I'm not surprised to hear it, but it's still a point
Meanwhile you have VAC that has changed their mind of what they sell like four times. Someone with more time than me actually screenshotted all the times they've changed what they say they sell and posted it. I'm not digging it up, I don't care enough.
Now ACL and King bearing also exist, again with very little information out there of what they are.
So, if I were having my engines rod bearings replaced somewhere that knows what they're doing -I assure you there are much less of these shops than one would think- and that outfit is going to measure the clearance on every bearing with something better than plastigauge, then ok, you're probably going to be fine.
Personally? I've done 9 or 10 S65s and as I don't have the right measuring tools I will not install something that is not BE.
In the end, opinions are like assholes. Everyone has one. Most are completely worthless. Hell, it's 2020 and people are still sleeving S65s! So best of luck