ACL Performance Race Series Main Bearing Sets

5.0 out of 5 stars 1 Customer Reviews

ACL Performance Race Series main bearing sets deliver everything performance bearings should be by utilizing design, metallurgy, engineering, precision quality cont

ACL Performance Race Series main bearing sets deliver everything performance bearings should be by utilizing design, metallurgy, engineering, precision quality control, and of course, years of knowledge and experience.

Main bearings feature multi-layered tri-metal copper alloy construction that blends characteristics to provide high strength and excellent seizure resistance. They are manufactured to exact tolerances ensuring a reliable fit and helping to maintain consistent clearances. Main bearings are augmented with extended grooves, as well as other bearing enhancements, like increased crush, bearing eccentricity, and enlarged I.D. chamfers.

ACL Performance Race Series main bearing sets are produced in standard and extra clearance versions, with or without friction reducer coating, and with modifications to meet specific build requirements, such as narrowed bearings that permit additional edge clearance when running crankshafts with exceptionally large fillet radii.

In the heat of competition proven technology always comes through. The choice for your build should always be ACL Performance Race Series engine bearings. Choose the main bearing set designed for your vehicle.

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ACL Performance Race Series Main Bearing Sets 5M429HC-001

ChevroletSmall Block Small Pin - 2.000" 265, 283, 302, 327 ci V8Tri-Metal Coated - .025mm (.001") undersize

Part Number: PEB-5M429HC-001

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

ACL Performance Race Series Main Bearing Sets 5M429HC-STD

ChevroletSmall Block Small Pin - 2.000" 265, 283, 302, 327 ci V8Tri-Metal Coated - Standard

Part Number: PEB-5M429HC-STD

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

ACL Performance Race Series Main Bearing Sets 5M429HC-010

ChevroletSmall Block Small Pin - 2.000" 265, 283, 302, 327 ci V8Tri-Metal Coated - .25mm (.010") undersize

Part Number: PEB-5M429HC-010

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

ACL Performance Race Series Main Bearing Sets 5M429HXC-STD

ChevroletSmall Block Small Pin - 2.000" 265, 283, 302, 327 ci V8Tri-Metal Coated - STD - Extra .001" oil clearance

Part Number: PEB-5M429HXC-STD

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today