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Valve Guide-Liner System

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#1 Repair Method for Aluminum & Cast Iron Cylinder Heads
Our leadership in developing new, cost effective ways to repair worn valve guides led to the development of the Bronze Bullet® Interrupted Spiral® Guide-Liner® over forty years ago.

Today, the Guide-Liner® is one of the most popular repair alternatives, approved by Ford, GM, Caterpillar, Cummins, among other OEMs for use in rebuilding their engines.

Guide-Liner® Benefits:

  • Superior Lubricity - Reduces valve stem sticking and galling.
  • Oil Control - Interrupted Spiral® reduces to possibility of excessive oil consumption.
  • Tighter guide-to-stem clearances for improved performance.
  • Improved wear characteristics vs. cast iron.


Engine Rebuilder Friendly... Easy-To-Install
Install in seconds with the auto-installer.  Bronze Bullet® Guide-Liners® eliminate the need to chamfer guide bosses, as well as the expense of having to replace valves or guides.  The Interrupted Spiral® provides superior lubrication and oil control.

Proven Performance...
Performance engine builders love the Bronze Bullet® Guide-Liners® for their race-winning reliability.  NASCAR teams use them as well as NHRA and IHRA drag cars, circle track racers, off-road racers and builders of street performance engines.

Don't Settle for Imitations!  Use the Original...

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