SKU: 58056084597

ACL Race Series Bearings BMW N55B30 2979cc Inline6 DOHC 4v Turbo, Main Bearing, extra oil clearance (0.025mm) 7M1397HX

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Description

ACL Race Series Bearings BMW N55B30 2979cc Inline6 DOHC 4v Turbo, Main Bearing, extra oil clearance (0.025mm) 7M1397HXABOUT ACL For over 70 years precision engine bearings have been manufactured in Launceston, Tasmania, Australia. During this time ACL has been a major OEM supplier to the Australian & International automotive industry, whilst providing an extensive replacement product range for the global aftermarket. Today ACL produces one of the largest aftermarket range of engine bearings and has a global reputation for robust metallurgy, quality, precision,

ABOUT ACL

For over 70 years precision engine bearings have been manufactured in Launceston, Tasmania, Australia.

During this time ACL has been a major OEM supplier to the Australian & International automotive industry, whilst providing an extensive replacement product range for the global aftermarket.

Today ACL produces one of the largest aftermarket range of engine bearings and has a global reputation for robust metallurgy, quality, precision, innovation and performance.

ACL has a long and rich history in motorsport – it is in our DNA. The ACL RACE Series Performance Engine Bearings of today has a strong pedigree in motor racing that traces its roots back to the 1960’s with the manufacture of engine bearings for use in the world conquering Brabham Formula 1.

Further experience in the Australian Supercars Championship, drag racing, speedway, drifting & rally with its range of RACE Series Performance Engine Bearings being the first choice for discerning engine builders the world over.

The ACL RACE Series Performance Engine Bearing offering covers over 200 varied engine applications covering a wide range of performance engine bearings for Australian, American, Japanese, Korean & European applications. The range continues to expand to cover new engine releases.

The company has a high degree of vertical integration encompassing: tooling & product design, bearing strip manufacture, tooling & machine manufacture as well as the complex manufacturing processes & systems required to produce the final product.

ACL's Business Management Systems hold the internationally recognized ISO9001: 2015 Quality Management System, ISO14001: 2015 Environmental Management System & ISO451001: 2018 Occupational Health & Safety Management System certification.

Description: BMW N55B30 2979cc Inline6 DOHC 4v Turbo

Capacity: 2979 CC

Cylinders: 6

Bore Size: 3,3071 in / 84 mm

Stroke: 3,5276 in / 89,6 mm

FEATURES

  • HIGH STRENGTH OVERLAY PLATE with reduced thickness for improved fatigue properties
  • HARDENED STEEL BACKS on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
  • INCREASED CRUSH for improved bearing retention
  • ELIMINATION OF FLASH PLATING on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
  • INCREASED ECCENTRICITY to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
  • 3/4 GROOVED MAIN BEARINGS to optimize bearing load carrying surface area and oil flow to the conrod bearings.
  • TIGHT CONSISTENT WALL TOLERANCES to help you maintain consistent clearances.
  • ENLARGED ID CHAMFERS on bearing edges where required to accommodate large fillet radius on performance crankshafts.
MAIN BEARING - STDHX - EXTRA OIL CLEARANCE SET (-0.025MM)
  • High performance Tri metal engine bearings
  • Designed to withstand higher RPM conditions
  • High strength overlay plate with reduced thickness for improved fatigue properties



    Specifications for STD size only

    Sizes STD
    Oil Clearance
    Half Type Upper & lower
    Material F780
    Min. Std Shaft Size 64,961 mm / 2.5575 in
    Max. Std Shaft Size 64,98 mm / 2.5583 in
    Min. Std Tunnel Size 70 mm / 2.7559 in
    Max. Std Tunnel Size 70,019 mm / 2.7566 in
    Max Wall at Crown 2,495 mm / 0.0982 in
    Max Overall Length
    19,85 mm / 0.7815 in (1397HX)
    24,01 mm / 0.9453 in (1399HX(F))
    18,85 mm / 0.7421 in (1398HX)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 58056084597

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4.7 ★★★★★
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Product Reviews
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Verified Purchase
Gabby
Lexington, US
★★★★★ 5
We Feel the Same
Format: Kindle
Olive and Stella are such great, unique characters and so well developed and portrayed in this story. Their fear of commitment is realistic and their differences well defined. I loved every part of this tale and don't see how anybody else wouldn't feel the same.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 18, 2025
E
Verified Purchase
Eggis
Louisville, US
★★★★★ 5
Favorite book so far!
Format: Paperback, Format: Paperback
I’ve recently dived into sapphic novels and this is book 5 of my collection and i can confidently say this is my favorite i’ve read! I love how easy of a read it is! It got delivered at 3 and i finished it by 6, i was hooked. i would totally recommend this as a first time sapphic book! The characters are easy to understand and it features the “useless lesbians” chiche that i love so much in books. I laughed and cried and gasped while reading it. This book really hit home with the themes and characters, making its way into my heart as an unforgettable read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2025
R
Verified Purchase
Reese
Omaha, US
★★★★★ 3
okay
Format: Kindle
I have been so excited to get to this one for a while, and I really wanted to (and was so sure that I would) love this one, but in the end I thought it was just okay. This one started out so strong IMO (I'm a nervous flyer so I understood Olivia), I loved the "meet cute", and as a previous runner (who did RunDisney) I loved that part. I was really excited to see where it went once I realized it was going to be fake dating (my favorite trope). I liked each MC, but I really wish that Stella's POV was also included. I liked most of the side characters, and enjoyed how emotional the family aspects of this book were. This is open door, and there were a few really sweet/swoony sweet moments. For me this one felt very long in some points, but slow in others. Another thing that really bugged me was that Stella is described as "Latina". I personally hated that we were pretty far into the book before that was discussed, and I felt like it was weirdly used as a plot for why Stella was trying so hard to get her promotion. I also hated that there was so much family drama with Olive's family and there was no real resolution, and with Stella's dad I was hoping to see where he was in his diagnosis in the epilogue. Over all it wasn't a bad book, but it was disappointing IMO. I know this author has another book coming out soon, and I will eventually read it, and I hope it works better for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2024
B
Verified Purchase
Brooke Barnhurst
Houston, US
★★★★★ 4
Fantastic debut sapphic romance!!
Format: Paperback, Format: Paperback
I just want to hug these characters! Fly With Me has been a book I’ve been looking forward to reading for some time now, I’m excited to say it does not disappoint! 🩷💜💙 This sapphic romance was full of steamy bits, darling tender moments, and tons of emotional goodness! I adore when a romance packs an emotional punch, and this one absolutely does! There is depression, panic attacks, end of life care, sexism in the workplace, and so much more. Surrounding all of that though is a cute wlw love story with fake dating, a funny dog, delicious food, pop culture references, road trips, a sick/comfort moment, and deep conversations! All in all- I really enjoyed this one! Andie did an amazing job at writing characters that felt real and familiar! I can’t wait to see what else she writes moving forward!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 4, 2023
K
Verified Purchase
koalakat21
Belleville, US
★★★★★ 5
Wonderful Read
Format: Kindle
Fly With Me is a heartfelt story filled with witty banter and internal monologues yet incredibly touching. It is also about both finding and recognizing your own strength and worth. Olive and Stella agree to a fake relationship that of course turns into the real thing as they learn about themselves as well as each other. Add in a great cast of characters including a loveable dog, family health issues and drama, and a jealous ex and you have a story that is a wonderful read!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 8, 2024

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