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Michigan Motorsports LS1 Rocker Arms with Upgraded Bronze Bushing Trunnion Kit -Fits 4.8 5.3 5.7 6.0 LS1 LS2

4.3 (1) Write Review
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$319.99

$ 99 .00 $99.00

In Stock
  • LS Rocker Arms with Bronze Bushing Style Bearing Trunions Professionally Installed
  • Included: 16 New LS Rocker Arms with Bushing Style Bearing Trunions Professionally Installed and 16 Alen Head Bolts.
  • Whether you have a stock LS motor or a highly modified LS motor, replacing your rockers with upgraded Trunion Kit is highly recommended. The stock bearings have a tenancy to fail. These rocker arms are a must have for any aggressive heads and cam combo. LS Rocker Arms feature our BUSHING TRUNNION KITS. The Bushing bearing operate smoother and can operate at a higher RPM than even the caged bearing style upgrade.
  • The bushing design provides superior lubrication to the trunnion while also providing maximum load capability. Our innovative design prevents premature failures caused by the weak O.E. or replacement needle bearings, eliminating the possibility of debris from a bearing failure that can cause severe engine damage. Our special C932 bushing material is bathed in oil via grooves at 2 different locations on the trunnion.
  • These channels constantly feed oil to the bushing surface ensuring proper lubrication. The greater surface of our bushed trunnion will support 300 times more load than a needle bearing trunnion. Our bushing gets more lubrication and has less load applied to it than the bushing in the small end of a connecting rod, giving it long service life.


Product Description

Bronze bushing close up with Michigan Motorsports logo in the background

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.

Pile of Bronze Bushings on a table top

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


The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

Michigan Motorsports Bronze Bushing Trunnions

Merchant Video

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

Installation Procedure:

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

Christy
Reviewed in the United States on November 25, 2018
Fast shipping. Nice parts big car and after mkt heads. now they’re quiet !!!!!
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