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ACL Race ConConrod bearings BMW N63B44 / S63B44 (HX-STD)



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Article no.: ACL-8B1578HX-STD

ACL bearings are used for tuning and engine upgrades where you want better quality with higher bearing capacity than normal standard bearings.

Improvements of material, dynamic thickness, heat conduction, oil grooves and oil distribution are some of the points that make ACL one of the leading bearing manufacturers.

Bearing data

Part number: 8B1578HX
Bearing size: STD
Bearing half type: Identical halves
Bearing material: F781

Technical data (mm)

Max overall length: 15
Max shaft size: 53.99
Max tunnel size: 57.616
Max vertical oil clearance: 0.103
Max wall at crown: 1.781
Min shaft size: 53.971
Min tunnel size: 57.6
Min vertical oil clearance: 0.055

Technical data (in)

Max overall length: 0.5906
Max shaft size: 2.1256
Max tunnel size: 2.2683
Max vertical oil clearance: 0.0041
Max wall at crown: 0.0701
Min shaft size: 2.1248
Min tunnel size: 2.2677
Min vertical oil clearance: 0.0022

Engine code

N63B44 / S63B44


BMW N63B44 4395cc V8 DOHC 4v Twin Turbo
BMW S63B44 4395cc V8 DOHC 4v Twin Turbo

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