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  • LS3 Rocker Arms With Bronze Bushing Trunions Installed 6.0 6.2 L99 L76 L92 LS9 LSA L96 Trunnion
  • LS3 Rocker Arms With Bronze Bushing Trunions Installed 6.0 6.2 L99 L76 L92 LS9 LSA L96 Trunnion
  • LS3 Rocker Arms With Bronze Bushing Trunions Installed 6.0 6.2 L99 L76 L92 LS9 LSA L96 Trunnion
  • LS3 Rocker Arms With Bronze Bushing Trunions Installed 6.0 6.2 L99 L76 L92 LS9 LSA L96 Trunnion
  • LS3 Rocker Arms With Bronze Bushing Trunions Installed 6.0 6.2 L99 L76 L92 LS9 LSA L96 Trunnion
  • LS3 Rocker Arms With Bronze Bushing Trunions Installed 6.0 6.2 L99 L76 L92 LS9 LSA L96 Trunnion

    • LS3 Rocker Arms With Bronze Bushing Trunions Installed 6.0 6.2 L99 L76 L92 LS9 LSA L96 Trunnion

    Michigan Motorsports

    $379.99
    (3 reviews) Write a Review
    SKU:
    MM-BBLS3RA
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    Product Description

    Michigan Motorsports LS3 Rocker Arms with Upgraded Bronze Bushing Trunnion Kit Installed

    Fits GM LS3 / Rectangle Port Cylinder Heads | L99, L76, L77, L92, LS9, LSA, L96

    The Michigan Motorsports LS3 Rocker Arms with Bronze Bushing Trunnion Kit Installed are a direct bolt-on upgrade for GM LS3-style rectangle port cylinder heads. This complete set includes LS3 intake and exhaust rocker arms with an upgraded bronze bushing trunnion system already installed, along with new LS3-specific rocker arm bolts. Designed to eliminate the weak factory needle bearing design, this setup dramatically improves durability, oiling, and load capacity—making it a critical upgrade for both stock and aggressive heads-and-cam LS engine builds.

    Key Features & Benefits

    • Pre-Assembled Bronze Bushing Trunnion Upgrade: Eliminates the factory cageless needle bearings and powdered metal trunnion, preventing common failures that can send debris through the engine.
    • Superior Load Capacity & Oiling: The C932 bronze bushing design supports up to 300 times more load than needle bearings and is continuously lubricated by dual oiling grooves.
    • LS3 Intake Offset Geometry: Intake rocker arms feature the correct offset fulcrum required for LS3-style rectangle port cylinder heads.
    • Complete Ready-to-Install Kit: Includes 8 intake rockers, 8 exhaust rockers, and 16 new LS3-specific rocker arm bolts—no additional parts required.
    • Ideal for Performance Builds: Strongly recommended for stock, cammed, and high-lift applications where factory rocker bearings are known to fail.

    Key Fitments

    • LS3: Rectangle port cylinder heads
    • L99: LS3-style rectangle port heads
    • L76: Rectangle port cylinder heads
    • L77: Rectangle port cylinder heads
    • L92: Rectangle port cylinder heads
    • LS9: Rectangle port cylinder heads
    • LSA: Rectangle port cylinder heads
    • L96: Rectangle port cylinder heads

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    • 5
      LS3 rocker arms

      Posted by javier ortega on Jun 10th 2024

      they look very nice and looking forward to running the car, Lingenfelter GT 11 cam and heads kit, stainless works headers

    • 5
      Great rockers!

      Posted by Geno on Feb 19th 2024

      Michigan Motorsports recommended these rockers and couldn't be happier. Valve train with new springs sounds better than ever. Great service, value and quick shipping.

    • 5
      Ls3 rocker arms with upgraded trunions and BRONZE bushing style bearings

      Posted by Andrew Serrano on Sep 28th 2019

      EXCELLENT AND FAST DELIVERY, parts were in perfect condition and bearings installed perfectly and ready to install, will definitely be ordering from michigan motorsports again