ACL Bearings Connecting Rod Bearing Set 8B1578H-.25; Race Series Performance 0.25 mm for 2011 and Up BMW M5 F10, F90 4.4L S63B44

$192.63

Part #: 8B1578H-.25

Brand: ACL Bearings

UPC: 09315726450543

Estimated Ship Date: Today

Specifications

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Details

A blend of characteristics to provide high strength and excellent seizure resistance.
No flash plating is applied to further improve bearing retention and maximise heat transfer.
Improved bearing retention from higher radial contact pressure.
Locks the bearing into the housing.
More effective heat dissipation through improved thermal transfer.
Definition: Gradual reduction in wall thickness between the crown and parting line.
ACL Race Series performance engine bearings feature increased eccentricity to improve shape adaptation to compensate for bore distortion at high speed operation.
Assists in the formation of hydrodynamic oil film.
Accommodate larger fillet radii on performance crankshafts.

Product Description

ACL Race Series performance engine bearings are manufactured to exacting tolerances. Micron tolerance machining supported by precision measurement systems delivers consistent accuracy to key characteristics like wall thickness and crush. This ensures reliable fit and helps maintain consistent clearances.

Specifications

Connecting Rod Bearing Set Series:
Race Series: Year:
2011 and Up: Make:
BMW: Model:
M5 F10, F90: Engine:
4.4L S63B44: Bearing Undersize:
0.25 mm: Usage:
Performance: Construction:
Tri Metal: Backing Layer Material:
Steel: Bearing Lining or Intermediate Material:
Copper, Lead, Tin: Overlay Material:
Lead, Tin, Copper: Coated:
No: Chamfered:
Yes: Bearing Width:
0.591 in.: Standard Bearing Thickness (Without O/S):
0.071 in.: Standard Crank Pin Diameter (Without O/S):
2.125 in.: Standard Housing Diameter (Without O/S):
2.268 in.: Quantity:
Sold As Set (8/pkg)