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VALVE GUIDES
Valve guides can be manufactured from a variety of materials, but CHE’s Proprietary Blended Bronze Alloys have extraordinary wear resistance and greater thermal properties than all other bronze alloys tested. This material is excellent for extreme temperatures and high RPM engines. Our guides are manufactured for longevity and performance.
Using our Proprietary Blended Bronze Alloy materials in valve guides allows for a more predictable and consistent expansion rate. This will allow you to run tighter stem-to-guide clearances as tight as 0.0006”. A tighter valve keeps unwanted lateral valve movement under control, which in turn reduces wear on the guide, seat and valve face.
VALVE SEATS
CHE’s Proprietary Blended Bronze Alloys have been developed specifically with valve seats in mind. They have extraordinary wear resistance and greater thermal properties than all other bronze alloys tested.
These materials are excellent for extreme temperatures as seen in high horsepower applications. These work especially well in Nitrous Oxide and Turbo applications. CHE also offers Ductile Iron and Beryllium Copper valve seats. All of our seats offer ultra tight tolerances with key dimensions held to within ±0.0002” and finishes better than 16Ra.
LIFTER BORE BUSHINGS
Introducing CHE Precision Inc. Lifter Bore Bushings that last 2-4 times longer than our competitors. As with all CHE products, if you are searching for precision, quality, and long-lasting performance, you will not find a better product anywhere! CHE Precision understands racing needs and can manufacture a lifter bore bushing to your specifications.
VALVE LOCKS (KEEPERS)
Valve locks (keepers) are crucial to assist in securing valve train control. The combination of high quality valve locks and spring retainers are the key to holding the valve spring under the correct pressure and in the correct position. CHE offers the highest quality machined valve locks on the market in heat-treated steel and titanium with standard and offset heights for various applications. Need your valve locks coated? We offer black-oxide and zinc coatings to suit your specifications.
RETAINERS
CHE’s retainers have been extensively engineered and tested to perform under the most extreme conditions. Our racing designed titanium spring retainers are the lightest in the industry and have been proven to have less valve bounce at high RPM. This amazing achievement has been accomplished without sacrificing part longevity. From race teams to streetcars, CHE can manufacture the right retainer to fit your application.
TRUNNION KIT UPGRADES
You don’t have to worry about nasty needle bearings escaping into your engine anymore! We have a high performance, high RPM solution! CHE Precision offers LS/LT, Ford 7.3L Godzilla, and Viper Trunnion Kit upgrades designed to improve the life and performance of your engine.
Our trunnion kits are compatible with stock rocker bolts and the easy assembly kits only require snap ring pliers and lube. The kits include hardened-steel trunnions, bronze bushings, and retainer clips.
By replacing the stock caged roller bearing assembly with CHE’s uniquely designed kits, the low-mass rotating weight is maintained, while providing superior reliability for high RPM race engines. With 35+ years of industry experience, CHE has developed its own proprietary material that has revolutionized the industry by setting a new standard for wear and performance.
The trunnion bushings are made of this proprietary bronze material, with superior oil-grooving technology, and provide substantially more load-bearing strength along with maximum lubrication.
See installation tips for more info on upgrading your rocker arms!
