Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
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Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Replacing your rockers with a true roller bearing setup is highly recommended.
Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance
Item #: 89058271

Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 |

97% of respondents would recommend this to a friend

Item #: 89058271

USD 251

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Replacing your rockers with a true roller bearing setup is highly recommended.
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What Stands Out

Pre-Assembled Design
Simplifies installation for users, saving time and effort in upgrading LS engines while ensuring proper fit and function.
Upgraded Trunnions
Provides increased durability and longevity under high-performance conditions, reducing wear and maintenance needs compared to standard rocker arms.
Wide Compatibility
Fits multiple GM LS Engine variants, making it a versatile choice for various builds and enhancing appeal to a broader audience.

Product Details

Shop Michigan Motorsports LS1 Rocker Arms with Upgraded Trunnions | Pre-Assembled for GM LS Engines | Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33 | Enhanced Durability and Performance online at a best price in Turks and Caicos. 3467480234
  • Upgrade your GM LS engine’s valvetrain with these pre-assembled Michigan Motorsports LS1 Rocker Arms featuring upgraded trunnions, designed to enhance stability, durability, and performance. This kit provides fully assembled rocker arms with high-performance trunnion bearings, replacing the factory needle bearings for improved strength and reliability. Designed as a direct replacement for LS-based engines, these rocker arms fit 4.8L, 5.3L, 5.7L, 6.0L LS1, LS2, LS6, LQ4, LQ9, LY5, LM7, and L33 applications, making them an ideal upgrade for stock and high-performance builds. The upgraded trunnions enhance valvetrain stability and allow for increased RPM potential, ensuring smoother operation under high-lift camshaft conditions. Built for long-term durability, these rocker arms are precision-machined to OEM specifications, ensuring a perfect fit and reliable performance in LS-powered vehicles. Whether you're rebuilding an engine, upgrading your valvetrain, or replacing worn factory components, these pre-assembled LS1 rocker arms with upgraded trunnions offer a superior solution for strength and longevity. Upgrade your LS valvetrain with a proven high-performance rocker arm solution designed for street, strip, and high-performance applications.
Manufacturer part number25100
Vehicle model25100
Vehicle makeGM
Vehicle fitment typeSpecific
Automotive parts divisionDirect Replacement, Performance
BrandMichigan Motorsports
Automotive specialty part typeRocker Arms
FeaturesEasy Installation
Material8620 Steel Alloy
FinishMachined
Weight8 lb (3.63 kg)
Has written warrantyNo
Items included16 LS Series Rocker Arms with Roller Bearing Trunnion Upgrade Installed 16 High Strength Allen head bolts for LS Rockers
Vehicle typeMotor Vehicle, Truck, Car
Compatible carsLS2 LS6 LQ4 LQ9 LM7 4.8 5.3 5.7 6.0
Pack quantity1

Who Should Buy?

Suitable For
  • Performance Enthusiasts

    Ideal for car enthusiasts looking to enhance their GM LS engine's performance with reliable rocker arms.

  • Race Applications

    Perfect for competitive racing scenarios where enhanced durability and performance reliability are crucial.

  • Engine Builders

    Useful for professional engine builders seeking a pre-assembled solution to save time and improve engine setups.

Not Suitable For
  • Daily Drivers

    Not suitable for standard daily drivers requiring budget-friendly and less aggressive performance components.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is included in the kit?

    Answer: The kit includes 16 LS1 rocker arms with roller bearing trunnions, 16 high-strength Allen head bolts, and installation instructions.
  • Question: Is this product suitable for my LS engine?

    Answer: Yes, it fits various LS engines including LS1, LS2, LS6, LR4, LM7, and more, but not for Rectangle Port/LS3 Style heads.
  • Question: Why should I replace my stock rocker arms?

    Answer: Replacing stock rocker arms with this upgraded kit significantly reduces the risk of bearing failure and improves performance.

Michigan Motorsports Replacement Auto Parts Editorial Review

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USD 251

Order now and get it around Monday, September 28

QTY:

Only 12 items left in stock.
Secured transactionsecured transaction

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  • fedex
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Fastest cross-border delivery

Features & Benefits

  • Upgrade to premium 8620 steel alloy for enhanced durability.
  • Includes 16 LS1 rocker arms and high-strength installation bolts.
  • Professionally installed trunnion bearings for reliability.
  • Minimizes failure risks associated with stock needle bearings.
  • Ideal for aggressive heads and cam combinations.
  • Compatible with a wide range of LS engines.

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