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ACL Bearings 4B1780H-.50 Race Series Connecting Rod Bearings

Manufacturer

Picture for manufacturer ACL Bearings

Part Number

4B1780H-.50
5 reviews
Sale Price

$84.40

Estimated ship date Saturday, October 31

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Product Details

ACL Race Series connecting rod bearings are engineered for high-performance and racing applications where durability and precision are critical. These bearings feature advanced metallurgy and specialized coatings designed to withstand extreme loads, high RPM operation, and elevated temperatures commonly encountered in competition engines.

Key Features:

  • Race Series construction for maximum strength and reliability under extreme conditions
  • Precision-machined bearing surfaces for optimal oil clearances and reduced friction
  • Advanced bearing material formulation optimized for high-load racing applications
  • -.50mm undersize for crankshaft journals that have been machined for bearing clearance correction
  • Engineered to maintain oil film integrity during high-RPM operation
  • Manufactured to strict tolerances for consistent performance

ACL Race Series bearings are the choice of professional engine builders and racers who demand components that can handle the punishment of competition use. The undersize dimension allows for proper fitting on crankshafts that have been ground to restore journal dimensions or achieve specific clearances.

Products specifications

Max Overall Length

0.673"(17.10mm)

Max Std Shaft Size

1.6535"(42.000mm)

Max Std Tunnel Size

1.7726"(45.024mm)

Max Wall at Crown

0.0585"(1.487mm)

Min Std Shaft Size

1.6529"(41.985mm)

Min Std Tunnel Size

1.7717"(45.000mm)

Oil Clearance

Standard

Size

.50

Lowest price and S&H around! Prompt responses! Will def buy from again!

Best price I could find on line, shipped really fast. With how low the price is I was worried but everything came fast and it was the correct parts. This place really keeps the cost of racing down.

I received my ARP head studs as described and on time with zero problems, and cheaper than anywhere else.Will use again!!!

Best price I could find anywhere. Almost 10% less than my typical sources and the item shipped in less than 24 hrs.<br>

Great fast quality service. O high recommend shopping with autoplicity .. Two thumbs up !!!

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