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  • 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
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    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.

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    • 5
      ls rebuild parts and services

      Posted by Matthew Dumas on Feb 13th 2020

      great quality

    • 5
      Thank You

      Posted by Matt on Nov 23rd 2019

      As they they should be.

    • 5
      Ls1 rocker arms

      Posted by Jose Rodriguez on Sep 30th 2019

      Good quality and easy to install instructions are very clear. It is clear that these rocker arms are of good quality and meant to last

    • 5
      liltlebmw@aol.com

      Posted by Marcos Silva on Sep 18th 2019

      liltlebmw@aol.com

    • 5
      Flawless

      Posted by John H on Jul 26th 2019

      Nice upgrade to top off our DOD delete 5.3 great quality and design. Way better than stock. Very happy with these on our comp cam with Diablo tune 5.3. Not going to wear out like the factory design did.

    • 5
      Great product

      Posted by Steven Heiser on Jul 22nd 2019

      Awesome rockers with simple instructions. Just bolt right in torque and your done.

    • 5
      LS Rockers W/upgrade

      Posted by Joseph Tricoli on Jun 24th 2019

      Great product you guys, simple install and by just looking at the new trunion style it gives me confidence there will be no more failures such as the needle roller caged style has! I'm in the bottom end now, LIFTERS!!!

    • 4
      Excellent

      Posted by Antonio vargas on Apr 26th 2019

      Great product, well built, reasonable price and got it very quick. I love it

    • 5
      Rocker/trunnion upgrade

      Posted by Dylan on Apr 1st 2019

      Very good quality pieces!