Michigan Motorsports LS Rocker Arms with Upgraded Trunion Bearings Installed

LS1 style upgraded strength allen head 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.

Fits all these applications: LS1/LS2/LS6/ LR4 Vortec 5300 LM7 L59 LM4 L33 – 4.8/5.3/5.7/6.0/ Engines

This kit includes:
16 LS Series Rocker Arms with Roller Bearing Trunnion Upgrade Installed
16 bolts for LS rocker arms


Shipping Information:

Most orders placed before 2pm EST M-F will ship the same day from our Michigan warehouse.  The only thing faster than our shipping is a LS.

We ship all items to United States only. International shipping is provided by eBay's global shipping program and is calculated once the items are placed in the shopping cart.

Return Information:

It is the customers responsibility to return your purchase within the 30 day return period in NEW, UNUSED condition in the original packaging.  Package all items carefully so that they are not damaged during shipping. Please include a copy of your original sales order.  Items returned past 30 days or damaged will not be refunded. These items will be returned at the buyers expense.

About Us:

Michigan Motorsports is a family owned and operated business that was established in 2012.  We are avid automotive enthusiast that have raced and been involved in the performance automotive parts industry for over 25 years. We specialize in the LS Parts platform including performance engine builds, and LS engine swaps. Our hands on experience offers the insights customers are often looking for.

Our mission is to sell the highest quality, most affordable LS/LT swap products on the market. Which is backed by excellent customer service which can often be lost with larger aftermarket retailers. We understand that when our customers order parts, they generally need them ASAP.