ACL

ACL BMW N63/S63 V8 0.25 Oversized High Performance Rod Bearing Set - 8B1578H-.25

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SKU:
ACL8B1578H-.25
UPC:
9315726450543
MPN:
8B1578H-.25
Availability:
Regularly stocked product
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$277.31
Current Stock: 6

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Description

When should I replace my rod bearings?
Replace these high-performance rod bearings on your BMW N63B44 when experiencing engine performance degradation or during major engine rebuilds for optimal reliability.

What is the advantage of using undersized bearings?
Using these 0.25mm undersize rod bearings ensures proper clearance and lubrication for your high-performance BMW engine, maximizing protection and performance.

ACL Race Series Rod Bearings are engineered specifically for the BMW N63B44 4.4L V8 engine, achieving a usage score of 8 for Racing Competition. These precision-engineered connecting rod bearings feature a 0.25mm undersize specification for optimal fitment. Trust ACL for superior engine protection and enhanced performance in demanding driving scenarios.

Key Features

  • BMW N63B44 4.4L 4395cc V8 Connecting Rod Set
  • 0.25mm (0.010") undersize

Why Choose the ACL Race Series Rod Bearings

Delivers enhanced durability for your high-performance BMW V8 engine.

Achieves optimal engine performance with precision-engineered components.

Provides superior protection against wear for extended engine life.

Transforms your driving experience with a more reliable and powerful engine.

Who Is This For?

Street Performance — 8/10
Designed for specific high-performance BMW engine.

Track / Autocross — 8/10
Engineered for demanding performance applications.

Racing Competition — 8/10
Premium performance bearings for competitive use.

Engine Performance — 9/10
Directly impacts engine's internal performance.

Frequently Asked Questions

Will the ACL Race Series Rod Bearings fit my vehicle?

Confirming fitment for your specific vehicle is the first step for these bearings. These ACL Race Series Rod Bearings are engineered specifically for the BMW N63B44 4.4L V8 engine, ensuring precise compatibility. Achieve optimal engine performance with precision-engineered components designed for your BMW.

How difficult is the ACL Race Series Rod Bearings installation?

Professional installation is recommended for these ACL Race Series Rod Bearings. Confirm with a qualified technician to ensure proper integration and optimal performance for your high-performance BMW V8 engine. This advanced maintenance level ensures superior protection against wear.

What performance improvement do the ACL Race Series Rod Bearings provide over stock?

Experience enhanced engine performance, scoring a 9 for Engine Performance in the usage matrix. These bearings directly impact your engine's internal performance, delivering enhanced durability and achieving optimal engine performance. Transform your driving experience with a more reliable and powerful engine.

What are the primary use cases for ACL Race Series Rod Bearings?

These bearings excel in Street Performance, Track/Autocross, and Racing Competition, each scoring an 8 in the usage matrix. Engineered for demanding performance applications, they deliver enhanced durability for your high-performance BMW V8 engine. Achieve optimal engine performance with these precision components.

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Additional Information

Clearance Item:
N
MPN:
8B1578H-.25
Proposition 65:
N
Case Lot Quantity:
1
Category:
Engine Components>Bearings
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