SKU: 33859152540

ACL Race Series Bearings BMW S55 2979cc Inline6 DOHC 4v Turbo CONROD BEARING - STD, .025, .25, .50 6B1584H

Sale price$175.05 Regular price$194.50
Save 10%

Pay in installments of $48.62 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

ACL Race Series Bearings BMW S55 2979cc Inline6 DOHC 4v Turbo CONROD BEARING - STD, .025, .25, .50 6B1584HABOUT 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 S55 B30

Capacity: 3999 CC

Cylinders: 8

Bore Size: 3,622 in / 92 mm

Stroke: 2,9606 in / 75,2 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 - STD, .025, .25, .50
  • 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, .025, .25, .50
    Oil Clearance
    Half Type Upper & lower
    Material F780
    Min. Std Shaft Size 59,971 mm / 2.3611 in
    Max. Std Shaft Size 59,99 mm / 2.3618 in
    Min. Std Tunnel Size 65 mm / 2.5591 in
    Max. Std Tunnel Size 65,019 mm / 2.5598 in
    Max Wall at Crown 2,5 mm / 0.0984 in
    Max Overall Length
    21,9 mm / 0.8622 in (1581H)
    27,95 mm / 1.1004 in (1582H(F))

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 33859152540

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 13 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Shamrock93
Lexington, US
★★★★★ 5
Just Slip On & Go
Size: 13, Color: Black/Black
These are honestly one of the easiest shoes I’ve owned. You just step in and go, no laces to deal with, but they still have that lace look which I like. I’ve had them for close to a year and they’ve held up well. Comfortable enough for everyday use. I liked them enough and got a few different versions of the same shoe. The elastic fit is what makes them stand out. If you want something simple, comfortable, and still a little dressy, these are solid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
D
Verified Purchase
DC
New York, US
★★★★★ 5
Attractive
Size: 7, Color: Grey
Comfortable Get many "nice shoes" compliments
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
C
Verified Purchase
Carlos Bravo
Lake Worth, US
★★★★★ 4
Nice Sporty Dress Shoes
Size: 8, Color: Grey
Look good. Fit good. Feel good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 29, 2025
S
Verified Purchase
Setter mom
Natrona Heights, US
★★★★★ 5
Great shoe. Great style
Size: 9, Color: Olive
Beautiful shoe. Nice quality. Going to reorder in a Wide. Regular runs too narrow for my feet. Hope the Wide works.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 5
Best work shoe
Size: 10.5, Color: Grey
Lots of compliments and comfortable too
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026

recommand products