Jump to content
SAU Community

Recommended Posts

Hi!

I'm looking to buy some bearings for my engines(rb20/rb25). Judging from other people engine specs people usually get ACL or King H/L bearings.

I went to ACL website and to my confusion they only have std/0.20/0.50 bearing sizes. How the hell should you buy them for a standard motor ?

Nissan has this grade system, you check all the marks, compare them to the manual and get the correct bearings. What about ACL then?

Does it mean they are inferior ? Or I don't understand something.

Looking forward to the replies.

Thanks!

You could buy ACL,King or Nismo bearings. All are good.

In reference to the size,when you get your crank done they will be able to tell you what size bearing to get,most cases you just need the standard size but if your crank is in bad shape and they needed to remove some material they might suggest a different size bearing.

ACL race series come in STD 1thou extra. If your crank is worn from STD your engine builder can linish the crank to suit these for correct clearance. If too worn or damaged for 1thou it will need to be ground 10thou and the 1st undersize bearings used.

ACL part numbers for 1thou under are

6B2960HX for big ends (conrod bearings)

7M2428HX for mains

easy!

Edited by DiRTgarage
ACL race series come in STD 1thou extra. If your crank is worn from STD your engine builder can linish the crank to suit these for correct clearance. If too worn or damaged for 1thou it will need to be ground 10thou and the 1st undersize bearings used.

ACL part numbers for 1thou under are

6B2960HX for big ends (conrod bearings)

7M2428HX for mains

easy!

Did you get my bearings Paul :bomb_ie:

So if my crank is not worn and all within nissan specs, I just order std without these HX for some more oil clearance, right?

if your crank is not worn you use...

6B2960H for big ends

and

7M2428H for mains

bearings with an X at the end will give 1 thou LESS clearance than these.

Yes Dave got bearings mate.

Edited by DiRTgarage

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Maybe they'll look to do a bunch of presales to help inject some cash fast for their financial issues...
    • Does it also misfire equally when revving?   Josh is very correct in what you should do. The coilpack harness wiring loom itself is a known problem due to its age and the number of heat cycles it has gone through. Throwing parts at a vehicle to diagnose the issue isn't a smart or good way to do it. Secondly, you may have a bad coil pack, you pop replacements in, they fix that issue, but messing with the harness breaks it, so the issue persists. So now you think "well it wasn't the coil packs" and have to continue chasing your tail, potentially swapping back in your shit coil packs and returning the good ones (yes, I've seen people do this because 'it wasn't the problem' and they want to save money). And suddenly, you've got two issues with the same symptoms...   Diagnose, don't use the spare parts shotgun.
    • Well the articals keep saying a Q50s (Skyline in Japan) with a new Manual gearbox. I like the talk about the new looks with the round tail lights. I hope they bring back the retro look like they did with the Z
    • Off the back of feedback we have decided to mix up this next Motorkhana at Avalon to have some targeted skills practice for beginners to advanced. Saturday 6th September 2025 8:30am Capped 26 entries Standard Entry Fee: $89 Members Entry Fee: $55 (SAU Victoria Only) Entries Close: Friday 5th February  Where: 55 beach road Avalon. https://maps.app.goo.gl/HNUE3EuNue3sJxh38 Entries: Limited to 26 entrants (Passengers allowed over the age of 14 with a signed disclaimer and same safety gear) Disclaimer: Download  Please electronically sign and email to [email protected] or print and hand in and Driver Sign In. To compete in this event you will require A valid  AASA General Speed licence or (Day license via the AASA Website for $50) MA Licenses are no longer accepted by AASA https://aasa.com.au/  A helmet, long sleeve clothing and a 1KG mounted fire extinguisher recommended (But not Mandatory). Further details within Supp Regs on the enty link. Entry Link > https://www.sauvic.com.au/entry/deca/20250906 You can bring and have a passenger in the car but they need to comply to the same safety and clothing as driver. Bring your car and get to battle others, win, lose or draw. I can guarantee you will have lots of fun. Any questions email [email protected] Entry List: 1.Anna S 2. Luke S 3. Jesse Givens-Lamb 4. Luca Stamatescu 5. Madeleine Stamatescu    
    • Wanna rewrite all of that in, say, 2 or 3 separate sentences, so that we can read it?
×
×
  • Create New...