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CHE Precision 4290 Single Trunnion with Bushing & Clips | Fits 4.8L 5.3L 5.7L 6.0L 6.2L 7.0L LS1 LS2 LS3 LM7 LQ4 L83 L86 LT1 | Enhanced Stability for LS & Gen V LT Rocker Arms

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Precision Machined Trunnion: Designed by CHE for high-performance applications, this trunnion is built to handle the abuse of aggressive cam profiles, high RPMs, and extended engine loads without failure.
Bronze Bushing Technology: Replaces the stock needle bearings with durable bronze bushings that eliminate the risk of bearing failure and catastrophic valvetrain damage during high-rpm use.
Increased Valvetrain Stability: Reduces rocker arm movement and deflection under load, improving valve control, engine efficiency, and overall horsepower potential across the RPM band.
Perfect for High-Stress Builds: Whether it’s for drag racing, drifting, or high-boost street performance, this CHE 4290 trunnion kit delivers superior durability and consistent results in the harshest environments.
Sold Individually – Not a Full Kit: This listing includes one single CHE 4290 trunnion with bushings and clips—ideal for replacing a damaged unit or upgrading one rocker arm without buying a complete set.

Product Description

Unleash the Full Potential of Your LS/LT Engine with CHE Trunnion Kits

Upgrade your LS engine's valve train reliability and performance with the CHE Trunnion Kit. Designed for superior durability and precision, this kit provides a premium solution for high-performance and stock LS applications. Whether you're tackling a cam swap, engine rebuild, or maximizing your LS engine's power, the CHE4290 Trunnion Kit is the ultimate choice for enthusiasts and professionals alike.

CHE Trunnion Kit Installed into LS7 Rocker Arms

Built for Durability and Performance

Advanced Design

Heavy-Duty Materials: Manufactured from aerospace-grade alloys to withstand extreme conditions.
Precision Design: Ensures smooth and consistent operation while reducing friction wear.

Performance Enhancements

Increased Load Capacity: Handles high spring pressures and aggressive cam profiles with ease.
Improved Reliability: Eliminates the common failure points of factory rocker arms, ensuring durability for street and track use.

Comprehensive Compatibility

Fits 1997+ GM LS engines, including LS1, LS2, LS3, LS6, LS7, LQ4, LQ9, and many more!
Ideal for stock replacements, cam swaps, and high-RPM builds.

Benefits of the CHE4290 Trunnion Kit

Single CHE Trunnion on white background.

Enhanced Reliability

This kit eliminates the weak points of factory rocker arms, ensuring consistent performance and durability under high-RPM and high-load conditions.

Optimized Power Potential

By reducing friction and improving valve train stability, this kit unlocks more horsepower and torque from your LS engine!

Race-Tested Durability

Designed for both street and track applications, the CHE4290 Trunnion Kit has been rigorously tested to meet the demands of high-performance engines.

Valve Train Stability

The CHE4290 reduces friction wear on critical components, this not only extends the life or your LS but also ensures reliable performance as well.

CHE4290 Technical Specifications

Part Number:	CHE4290
Material:	Aerospace-grade alloy
Applications:	4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, LS1, LS2, LS3, LS6, LS7, LQ4, LQ9 other compatible GM LS Engines
Performance Features:	Enhanced valve train stability, reduced friction, and increase durability

What engines are compatible with the CHE4290 Trunnion Kit?

This kit is compatible with GM LS engines, including: 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, LS1, LS2, LS3, LS6, LS7, LQ4, LQ9 and other LS-based platforms.
Can I use this kit for a cam swap?

Absolutely! The CHE4290 Trunnion Kit is specifically designed to handle the increased demands of cam swaps and high-performance applications.
Is installation difficult?

No, this kit is designed as a bolt-on upgrade and includes all necessary components for a straightforward installation.

Customer Reviews

"The CHE4290 Trunnion Kit is a game-changer for my LS3 build. Easy installation, top-notch quality, and it handles high RPMs like a dream. Highly Recommend to any doing a LS build or Cam Swap." -Verified Buyer

"I installed the CHE4290 kit during my cam swap, and the difference in performance and reliability is incredible. A must-have for any LS engine build." -Verified Buyer

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CHE Trunnion Kit installed into Rocker Arms

Order Your CHE4290 Trunnion Kit Today!

Don't let factory limitations hold back your LS engine. Equip it with the CHE4290 Trunnion kit for unmatched durability, reliability, and performance. Order today and take your LS build to the next level!

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