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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
      Rocker arms with trunnion upgrade

      Posted by Landon on Feb 26th 2019

      Very good quality!

    • 5
      LS1 Rockers

      Posted by Ted Gibson on Sep 11th 2018

      Great looking product!! Will definitely buy again..

    • 5
      Ls roller rockers with trunion upgrade

      Posted by Taylot on Jul 7th 2018

      Quick shipping, quality appearance of product and much easier install than pressing new trunions into the old rocker arms. 100% go for the complete unit as opposed to just buying the trunions. No worry of needle bearings blasting all over my engine when I bounce it off rev limiter. The Allan head bolts are also a lot nicer than the factory 8mm he's head. Over all good buy for the price.