• Top Street Performance LS/LT OE Style Retrofit Trunnion Upgrade Kit, Bronze Bushings
  • Top Street Performance LS/LT OE Style Retrofit Trunnion Upgrade Kit, Bronze Bushings - front view
  • Top Street Performance LS/LT OE Style Retrofit Trunnion Upgrade Kit, Bronze Bushings - side view
  • Top Street Performance LS/LT OE Style Retrofit Trunnion Upgrade Kit, Bronze Bushings - close-up
  • Top Street Performance LS/LT OE Style Retrofit Trunnion Upgrade Kit, Bronze Bushings - installed on the engine
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Top Street Performance

LS/LT OE Style Retrofit Trunnion Upgrade Kit, Bronze Bushings

LS/LT OE Style Retrofit Trunnion Upgrade Kit, Bronze Bushings

SKU: 60802

$132.00
$132.00 $150.00
Shipping calculated at checkout.

In stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Bronze bushing trunnion improves rocker arm stability over worn factory setup
  • Roller fulcrum included; rated to 7,000 RPM and 500 lbs open pressure
  • Retrofits into existing factory-style rocker arms — rocker arms not included
  • Fits GM Gen III/IV LS and Gen V LT V8 performance and rebuild applications

Description

Improve rocker arm stability and reduce wear on your GM LS/LT engine with this bronze bushing trunnion upgrade kit, designed to support more reliable valvetrain operation in performance and rebuild applications. The bronze bushing trunnion setup improves rocker arm movement and durability compared to worn factory components, making it a practical upgrade for engines seeing higher RPM, heavier spring pressure, or long-term street use.

This kit retrofits into your existing factory-style rocker arms — rocker arms are not included, and a roller fulcrum is included as part of the kit. Rated to 7,000 max RPM and 500 lbs open pressure. Use this kit when refreshing factory-style rocker arms or upgrading the valvetrain during a camshaft, spring, or engine build. Always verify tool/kit compatibility with rocker arm style, trunnion design, cylinder head generation, and valve spring setup before use.


Applications
Fits GM Gen III/IV LS V8 and Gen V LT V8 engines using OE-style rocker arms. Common on Silverado/Sierra, Camaro/Corvette, Tahoe/Suburban/Yukon/Escalade (LS/LT equipped), Pontiac GTO/G8, and GM LS/LT swap applications.

Installation
Retrofits into existing factory-style rocker arms — rocker arms not included. Verify tool/kit compatibility with rocker arm style, trunnion design, cylinder head generation, and valve spring setup before use.

Specs

Max RPM7,000
Open Pressure Rating500 lbs.
Quantity16
Rocker Arms IncludedNo
Roller Fulcrum IncludedYes
Upgrade StyleBronze Bushing

Engine Fitment

COMPATIBLE WITH
GM LS/LT OE-Style Rocker Arm Service Applications
• GM Gen III/IV LS V8 engines with OE-style rocker arms
• GM Gen V LT V8 engines with OE-style rocker arms

NOTES
• Retrofit trunnion upgrade kit, bronze bushing design, 16-piece quantity, aluminum rocker construction.
• Max RPM rating: 7,000. Open pressure rating: 500 lbs.
• Rocker arms not included — designed to retrofit into existing OE-style rocker arms.
• Roller fulcrum included.
• Verify tool/kit compatibility with rocker arm style, trunnion design, cylinder head generation, and valve spring setup before use.

COMMON VEHICLE APPLICATIONS
Chevrolet Silverado / GMC Sierra (LS/LT equipped)
Chevrolet Camaro / Corvette (LS/LT equipped)
Chevrolet Tahoe / Suburban / Yukon / Escalade (LS/LT equipped)
Pontiac GTO / G8, and GM LS/LT swap applications

Q&A

Does this fit both LS and LT engines?
Yes. This kit is designed for GM Gen III/IV LS V8 and Gen V LT V8 applications using compatible factory-style rocker arms.

Do I need new rocker arms to use this kit?
No. This kit is designed to retrofit your existing compatible OE-style rocker arms. Rocker arms are not included.

What's the max RPM and spring pressure rating for this kit?
The kit is rated for up to 7,000 RPM and 500 lbs of open valve spring pressure.

Does this kit include a roller fulcrum?
Yes. A roller fulcrum is included as part of this 16-piece kit.

Will this fit my LS3 Camaro or Corvette?
Yes, for LS3-equipped Camaro and Corvette applications using compatible factory-style rocker arms.

What should I check before installing this kit?
Verify rocker arm style, trunnion configuration, cylinder head generation, and valve spring setup before installation.

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.