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ARC Racing Rod Bearings for Honda GX390 & Big Block Clone Billet Rods
6391 ARC Honda/Clone GX340/390 Rod Bearing
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ARC Racing Rod Bearings for Honda GX390 & Big Block Clone Billet Rods

Part Number: 6391
Online Price: $22.00
Rod Bearings for GX390 & Big Block Clone Billet Rods – ARC Racing & EC Pinnacle
Availability: In Stock.

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Description

ARC Racing Rod Bearings for Honda GX390 & Big Block Clone Billet Rods


These babbitt-style rod bearings are precision-engineered for use with many aftermarket billet connecting rods in high-performance Honda GX390, Predator 420, Wildcat 460, and other Big Block Clone engines.


Designed to deliver superior durability and reduce friction in high-stress environments, these bearings are a must-have for builders using ARC Racing or EC Pinnacle billet rods in performance applications such as kart racing, mini bikes, or modified small engines.


Always check rod and crank journal specs before installation to ensure proper fit and oil clearance.


Compatible With the Following Billet Rods:

  • EC Pinnacle 8272 – 4.470” Rod (Wildcat 460 / Big Block Clone)
  • ARC Racing 6272 – 4.41” Rod (Honda GX340/390/420)
  • ARC Racing 6274 – 4.45” Rod (Honda GX340/390/420)
  • ARC Racing 6272 – 4.51” Rod (Honda GX340/390)


Key Features

  • High-quality babbitt-style bearing design
  • Reduces friction and wear under high RPM/load
  • Designed for performance billet rods
  • Ideal for karting, mini bike racing, and small engine builds
  • Direct replacement for worn or damaged bearings in listed rods

FAQ

Q1: What engines are these rod bearings compatible with?
A: These babbitt-style rod bearings are compatible with Honda GX390, Predator 420, Wildcat 460, and other GX390-style Big Block Clone engines using supported aftermarket billet connecting rods.


Q2: Which billet rods do these bearings fit?
A: These bearings are compatible with:

  • EC Pinnacle 8272 – 4.470” Rod (Wildcat 460 / Big Block Clone)
  • ARC Racing 6272 – 4.41” and 4.51” Rods (GX340/390/420)
  • ARC Racing 6274 – 4.45” Rod (GX340/390/420)


Q3: Are these bearings sold as a set?
A: Yes, each listing typically includes a pair of half-shell rod bearings—one set is required per connecting rod. Always confirm with your supplier if sold individually or as a set.


Q4: What type of bearing material is used?
A: These are babbitt-style bearings, known for their excellent load-carrying capacity, low friction, and ability to embed debris for reliable performance in high-RPM environments.


Q5: Can these be used in high-performance or racing engines?
A: Absolutely. These bearings are designed for performance applications, especially when paired with ARC or EC billet rods in racing or high-RPM small engine builds like karts, mini bikes, and drag setups.


Q6: Do I need to machine anything for installation?
A: No machining is typically required if you're using a compatible billet rod. However, always check oil clearance and crank journal dimensions to ensure proper fitment.

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