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Michigan Motorsports Replacement Trunion and Bronze Bushing Bearing | Fits 4.8 5.3 5.7 6.0 7.0 LT1 LSX LQ9 LS2 LS3 LS7 Trunnion | Single Replacement

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High-Strength Bronze Bushing Bearings – Eliminates OEM needle bearings, preventing failure and improving longevity under extreme loads.
Precision-Engineered Trunnions for LS Rocker Arms – Machined for maximum durability, smoother operation, and reduced friction at high RPMs.
Built for Performance & Reliability – Perfect for street, strip, and track applications, ensuring superior stability and long-lasting performance.
Direct Fitment for LS Engines – Compatible with LS1, LS3, LS7, LT1, LSX, LQ9, LS2, 4.8L, 5.3L, 5.7L, 6.0L, 7.0L V8 engines for an easy upgrade.
Enhanced Rocker Arm Performance – Improves engine efficiency by reducing friction, allowing for smoother, quieter, and more reliable valvetrain operation.

Product Description

Maximize LS Engine Performance

Unleash Peak LS Power with the Ultimate Trunnion Upgrade

Designed for LS1, LS3, LSX, LS2, LS7, and LT1 engines, this trunnion upgrade kit enhances stability, reduces friction, and boosts longevity. Whether you’re on the track, street, or dyno, this precision-machined kit is built to perform.

Unlease Superior LS Performance

Upgrade Your LS Engine with a High-Performance Rocker Arm Trunnion Kit!

Built for Durability | Precision Fit | Maximum Stability

Bronze Bushing Design - Eliminates failure-prone stock needle bearings.
Enhanced Valve train Stability - Reduces rocker arm flex.
Heavy-Duty Performance - Handles high RPM and aggressive camshaft profiles.
Complete Upgrade Kit - Includes everything for a seamless installation.

Michigan Motorsports LS Bronze Bushing Trunnion upgrade kit on a white background

Superior Strength and Stability

Bronze bushing comparison chart with OEM trunnions

Standard LS Rocker Arm Trunnions come with needle bearings prone to failure, leading to engine damage. Our bronze bushing upgrade eliminates this risk, providing maximum strength and reliability under extreme RPMs.

Designed for Extreme LS Performance

Engineered for Reliability, Built for Power Each component in this Michigan Motorsports Trunnion Upgrade Kit is precision-machined to ensure maximum strength, durability, and performance under high RPM conditions.

CNC-Machined Trunnions - Ensures perfect alignment and minimal wear
Premium Bronze Bushings - Eliminates the risk of needle-bearing failure.
Direct Bolt-On Fitment - Designed for LS1, LS3, LS7, LSX, LT1, LQ9 and more with an easy installation process!

Bronze Bushing Trunnion Upgrade Kit Unboxing

Michigan Motorsports Bronze Bushing Trunnions

Merchant Video

Installation Made Easy - "Bolt-On Performance in Minutes"

Installation Procedure:

Remove factory rocker arms and press out OEM needle bearings.
Check each rocker arm and clean off any dirt or debris.
Install upgraded trunnion while firmly pressing high-strength bronze bushing into each rocker arm using included washers.
Install clips (2 per rocker) on each rocker arm.
Torque everything to spec for a secure, high-performance fit.

Trusted by LS Enthusiasts

Why Customers Choose Michigan Motorsports?

Michigan Motorsports has been a leader in high-performance LS engine parts for years, trusted by racers, mechanics, and enthusiasts worldwide. Our Bronze Bushing Rocker Arm Trunnion Upgrade Kit has helped countless LS owners eliminate failures, improve efficiency, and extend the life of their engines.

"This trunnion upgrade saved my LS3 from disaster! Super easy install and works flawlessly!" - Kelly S.
"Perfect fit for my LS7 build. No more worrying about needle bearings failing at high RPM" -Ty

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