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Michigan Motorsports

Michigan Motorsports LS3 Rocker Arms with Bronze Trunnions Installed | Fits GM 6.0L 6.2L LS Engines L99 L76 L92 LS9 LSA L96 | Upgraded Bronze Bushing Trunnion Design

  • Based on 10 reviews
Condition: New
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$399.00 Why this price?
Save $260.00 was $659.00

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Availability: In Stock.
Fulfilled by Michigan Motorsports
Arrives Sunday, Mar 15
Order within 13 hours and 15 minutes
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Features

  • Bronze Bushing Trunnion Upgrade: Replaces factory needle bearings with high-strength bronze bushings to improve durability, oil control, and reliability in demanding LS engine applications.
  • Pre-Assembled Ready to Install: Trunnions are professionally installed, eliminating the need for press work or specialty tools and ensuring consistent assembly quality.
  • Enhanced Valvetrain Stability: Reduces the risk of trunnion failure at high RPM, making these rocker arms ideal for performance cams, boosted setups, and aggressive driving.
  • Wide LS3-Style Compatibility: Designed to fit multiple GM 6.0L and 6.2L LS engine variants commonly used in performance and late-model applications.

Manufacturer: ‎Michigan Motorsports


Brand: ‎Michigan Motorsports


Model: ‎LS3 Rocker Arms with Bronze Bushings Installed


Item model number: ‎MM-BBLS3RA


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Machined


Manufacturer Part Number: ‎24500-8+F7500-8+74300+assembly


Date First Available: February 17, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • GOOD QUAILITY
WORKED GOOD FOR MY 6.0 VORTECMAXX
Reviewed in the United States on February 17, 2025 by Sergie.savonik
    • Look at the one you took out put same shaped one back in its place.
Should have taken the sparkplugs out to make turning the engine by hand easier to get the rocker off the cam lobes. Direct fit for my 2012 6.2 LS3. Do them one at a time. Assembly lube for sure. No issues.
Reviewed in the United States on October 15, 2024 by Paul S.
    • Bronze trunnion failure
Bronze trunions failed during brand new engine break in process. They were installed correctly, torqued in correct sequence and engine was primed before first fire. 8 out of the 16 had significant play left to right and were making all kinds of noise. They look great, the quality i question. Hopefully they make things right. ... show more
Reviewed in the United States on March 25, 2025 by wayne gibbs
    • nice
michigan motor sports for the win great products .
Reviewed in the United States on January 6, 2023 by tim wellington

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