ACL 8B663HC-STD CT-1 Coated Race Rod Bearing Set for Chevy/LS V8 Engines

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Product Specification:

SKU:ACL8B663HC-STD

UPC: 9315726458723

Weight: 1.0 lb

Inventory: 18

Type: Bearings

Vehicle Fitment

Chevrolet Small-Block V8 engines - 262ci, 302ci, 305ci, 307ci, 327ci, 350ci, 400ci OHV (standard journal)
GM LS and Gen III/IV V8 engines - 4.8L, 5.3L, 5.7L (LS1/LS6), 6.0L (L76/L98/LS2), 6.2L (LS3) with standard crank journals
Other General Motors V8 applications using standard journal connecting rod bearings

Features

Race Series connecting rod bearing set engineered for performance and high-RPM use
CT-1 dry-film coated surface reduces friction and improves wear resistance
Tri-metal alloy construction for high load capacity and fatigue resistance
Standard journal size for direct fit in compatible Chevrolet small block and LS engines
Precision machined for consistent wall tolerances and oil film formation
Enlarged ID chamfers to clear large crank fillet radii on performance builds
Suitable for street/strip machines, performance rebuilds, and race engines
Direct replacement - no modification required when journal size is confirmed

Specifications

Brand: ACL
Part Number: 8B663HC-STD
Type: Connecting rod bearing set
Size: Standard journal (STD)
Material: Tri-metal alloy with CT-1 dry film coating
Number of Bearings: 8 halves (full set)
Max Wall Thickness: ~0.0619 in (1.572 mm)
Shaft Diameter Fit: ~2.0990"-2.1000" (53.315-53.340 mm)
Application: Performance small block and LS Gen III/IV V8 engines

Included Components

8x Connecting rod bearing halves (ACL 8B663HC-STD)

Product Description

The **ACL 8B663HC-STD CT-1 Coated Race Rod Bearing Set** is a high-performance connecting rod bearing solution designed for **Chevrolet small block V8 engines** - including 262ci through 400ci OHV applications - as well as a broad range of **GM LS/Gen III and Gen IV V8 engines** with standard crank journal diameters. This Race Series set features a **CT-1 dry-film coating** that reduces friction and improves wear resistance, making it ideal for performance rebuilds, street/strip builds, and high-RPM operation.

Constructed from a durable tri-metal alloy with precision tolerances and enlarged ID chamfers, the 8B663HC-STD bearings help ensure consistent oil film formation, excellent fatigue strength, and reliable performance under demanding conditions. The standard journal sizing provides a direct replacement fit when journal dimensions are confirmed, and the coated surface offers enhanced protection against intermediate oil starvation. Whether refreshing a classic small block, building a modern LS performance engine, or assembling a stroker motor, this ACL Race Series bearing set delivers performance and durability where it counts.