null
Toggle menu
  • LS1 Rocker Arms with upgraded Trunions Installed Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33
  • LS1 Rocker Arms with upgraded Trunions Installed Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33
  • LS1 Rocker Arms with upgraded Trunions Installed Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33
  • LS1 Rocker Arms with upgraded Trunions Installed Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33
  • LS1 Rocker Arms with upgraded Trunions Installed Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33
  • LS1 Rocker Arms with upgraded Trunions Installed Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33
  • LS1 Rocker Arms with upgraded Trunions Installed Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33
  • LS1 Rocker Arms with upgraded Trunions Installed Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33

    • LS1 Rocker Arms with upgraded Trunions Installed Fits 4.8 5.3 5.7 6.0 LS2 LS6 LQ4 LQ9 LY5 LM7 L33

    Michigan Motorsports

    MSRP: $249.00
    $199.99
    (You save $49.01 )
    (39 reviews) Write a Review
    SKU:
    25100
    UPC:
    00810144060019
    Adding to cart… category.add_cart_announcement

    Product Description

    Michigan Motorsports'  LS1 Rocker Arms with Trunnion Bearings Professionally Installed

    Fits: LS1 LS2 LS6 LR4 LM7 L59 LQ4 LQ9 LM4 L33 LS4 LY2 L20 LY5 LMG LMF LH6 LC9 LH8 LH9

    Also Fits: LS1/LS2/LS6/ LR4 Vortec 5300 LM7 L59 LM4 L33 – 4.8/5.3/5.7/6.0/ Engines. Will not fit Rectangle Port/"LS3" Style heads.

    This kit includes:

    • (16) LS Series Rocker Arms with Roller Bearing Trunnion Upgrade Installed
    • (16) High Strength Allen head bolts for LS Rockers

    Upgraded strength bolts are included for installation. 

    Whether you have a stock LS motor or a highly modified LS motor, replacing your rockers with a true roller bearing setup 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. We utilize LS rocker arms and install new LS1 rocker arm retro-fit trunion kit that replaces the cageless, loose OEM needle bearings and powdered metal trunion with a premium 8620 steel alloy trunion and caged roller bearings for added durability. The caged roller bearings that greatly reduce the possibility of the bearing failure experienced with stock LS1 needle bearings, which can send loose needles throughout the engine upon failure.

    Product Videos

    Videos Hide Videos Show Videos

    Custom Field

    Product Reviews

    Write a Review

    39 Reviews Hide Reviews Show Reviews

    • 5
      LS1 ROCKER ARMS

      Posted by Glenn Cheeseman on Jul 18th 2023

      Easiest people to deal with. Incredibly fast delivery time! Only two days to Australia.

    • 5
      ls1 rocker arms

      Posted by Michael Lee Williams on Apr 1st 2023

      great product. fast shipping

    • 5
      LS1 ROCKER ARMS WITH UPGRADED TRUNIONS

      Posted by Scot Waitman on Dec 1st 2022

      Nice parts with very fast shipping. Highly recommended!

    • 5
      Rocker arms good!!!

      Posted by Derick on Sep 22nd 2022

      Good quality very well-built works great

    • 5
      Rocker arms

      Posted by Darin on Apr 29th 2022

      These work great! The price is spot on! The only way your beating this price is doing it yourself and as most of us with limited time to work on our projects this saved both time and frustration also giving you the reliability that your looking for!

    • 5
      Nice Bolts

      Posted by A. Peters on Dec 13th 2021

      My kit came with bolts that were high quality made in USA!

    • 5
      High Quality Rockers

      Posted by Christopher on Nov 25th 2021

      Wasn't sure what to expect but had good customer service from this company and decided to give them a try, glad I did. High quality parts and even better service!

    • 5
      Rocker arms

      Posted by Jose on Nov 5th 2021

      Rocker arms fit perfect on my engine ls1 great product

    • 5
      Ls rockers

      Posted by Devin on Oct 15th 2021

      Good price, ready to bolt on.