ACL Ford Prod. V8 255-289-302 Race Series Engine Connecting Rod Bearing Set
ACL Ford Prod. V8 255-289-302 Race Series Engine Connecting Rod Bearing Set
Description
ACL Ford Prod. V8 255-289-302 Race Series Engine Connecting Rod Bearing Set
Product Overview
The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings.
Designed to withstand higher RPM conditions, ACL Race Series Connecting Rod Bearings are available for many of the popular 4, 6 & 8 cylinder applications and feature:
• *High strength overlay plate* with reduced thickness for improved fatigue properties
• *Hardened steel backs* on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
• *Increased crush* for improved bearing retention
• *Elimination of flash plating* on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
• *Increased eccentricity* to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
• *Tight consistent wall tolerances* to help you maintain consistent clearances.
• *Enlarged ID chamfers* on bearing edges where required to accommodate large fillet radius on performance crankshafts.
Data: v2 - Desc: v4.2 - Upd: 2026-11-07 15:30:33
Features
Note for Pistons, Rings, Rotors, Rods and engine internals
Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.
(keyword: rod)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| Description: | Connecting Rod Bearings; Tri-Metal Hardened Steel Backs; Upper & Lower |
| Max Overall Length: | 0.726"(18.44mm) |
| Max Std Shaft Size: | 2.1236"(53.939mm) |
| Max Std Tunnel Size: | 2.2398"(56.891mm) |
| Max Wall at Crown: | 0.0569"(1.445mm) |
| Min Std Shaft Size: | 2.1228"(53.919mm) |
| Min Std Tunnel Size: | 2.2390"(56.871mm) |
| Oil Clearance: | + 0.001" Extra |
| Part Number: | acl1B634HX-STD |
| Size: | Standard |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Acl, ACL BEARINGS, Acl Race Series Performance Engine Bearings |
| StreetFX SKU | acl1B634HX-STD |
| SFX Item ID | 4074638 |
| Accounting SKU | acl-1B634HX-STD |
| Manufacturer SKU | 1B634HX-STD |
| Manufacturer UPC | N/A |
Compatibility
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