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ACL Bearings 4B1972H-.025 Race Series Connecting Rod Bearings

Part of: ACL Bearings Race Series Connecting Rod

Other options in this family: ACL Bearings 4B1972HX-STD ACL Bearings 4B8351H-STD ACL Bearings 4B2960H-STD ACL Bearings 4B1946H-STD ACL Bearings 6B2960H-STD

Manufacturer

Picture for manufacturer ACL Bearings

Part Number

4B1972H-.025
13 reviews
Sale Price

$47.87

Estimated ship date Saturday, November 28

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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. The 4B1972H-.025 features an undersized dimension of .025" (0.025 inch undersize) to accommodate machined or worn crankshafts, allowing builders to restore proper bearing clearances during performance engine builds.

Key Features:

  • Race Series construction designed for extreme RPM and load conditions
  • 0.025" undersize for use with reground crankshafts
  • Tri-metal construction with hardened steel backing for maximum strength
  • Proprietary bearing material optimized for reduced friction and heat
  • Precision manufactured to tight tolerances for consistent oil clearance
  • Suitable for turbocharged, supercharged, and naturally aspirated racing engines

ACL's Race Series bearings provide the durability and performance required for professional racing, drag racing, road racing, and extreme street performance applications. Proper installation requires careful measurement of bearing clearances and adherence to manufacturer torque specifications.

Products specifications

Max Overall Length

0.606"(15.40mm)

Max Std Shaft Size

1.8898"(48.000mm)

Max Std Tunnel Size

2.0088"(51.024mm)

Max Wall at Crown

0.0591"(1.500mm)

Min Std Shaft Size

1.8890"(47.980mm)

Min Std Tunnel Size

2.008"(51.004mm)

Oil Clearance

Standard

Size

.025

Very good

Ordered last minute came fast

my stars tell it all

received on time and was satified

Overall experience was ok. Got my items at a very great price. Cheapest I found online BUT the shipping was a slight nightmare. Had to call multiple times and items finally got to me but other than I am pleased. I ordered a few days before black Friday/cyber Monday deals so that could've been the problem too. In the end I got what I wanted at the best price!

It was the first time I bought something from Autoplicity.com and it's exactly what I ordered. Arrived at a reasonable time and put it to good use right away.

So far so good

Awesome place got my order 2 days before scheduled with quality parts and great price

Only place I could find that exact tire

The floor mats I purchased for my car work like a dream. They were just as described in the listing. The shipping was also pretty quick. I just wish the price was about $20 cheaper. Other than that I was completely satisfied.

so far so good

Low prices, Fast shipping and great service!

Quick and efficient, Thank You!

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