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The Best Ls1 Trunion Upgrade of 2023 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Ls1 Trunion Upgrade of 2023. Check our ranking below.
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- Pre-Assembled LS1 Rocker Arms with Upgraded Trunnions: Fully assembled and ready to install, featuring high-performance trunnions for improved durability and smoother operation.
- Enhanced Valvetrain Stability: Upgraded trunnion bearings replace the factory needle bearings, providing greater strength and reduced failure risk under high-performance conditions.
- Direct Fit for GM LS Engines: Designed for 4.8L, 5.3L, 5.7L, 6.0L LS-based engines, including LS1, LS2, LS6, LQ4, LQ9, LY5, LM7, and L33, making them ideal for performance upgrades or OEM replacements.
- Improved High-RPM Performance: Upgraded trunnions allow for increased RPM potential and greater valvetrain control, making them a reliable choice for street, strip, and track applications.
- Designed for Long-Term Durability: Machined to OEM specifications with high-strength materials to withstand aggressive camshafts and high-lift applications, ensuring long-lasting performance.
- BTR Brian Tooley Racing V2 Premium LS Rocker Trunnion Kit
- Fits: LS1 LS2 LS3 LS6 L99 LS4 L99 LQ4 LQ9 L76 L92 LR4 LM7 L59 LM4 L33 L98 L77 LY6 LFA LZ1 LY2 L20 LMF LH6 LY5 LMG LC9 LH8 LS4 4.8 5.3 5.7 6.0 6.2
- The all new Trunnion Kit V2 features a Trunnion with pre-installed inner race bearings. The V1 kits have stood up to an enormous amount of abuse, but we decided to upgrade them to a pressed inner race comprised of 52100 Heat Treated Bearing Steel, over the more commonly used 8620 Carburized Steel found in our V1 kits and many OEM applications.
- Additionally, these feature a self oiling axle with priority feeding to the Trunnion itself.
- This Kit Includes: Brian Tooley Racing V2 Trunnions, Brian Tooley Racing Caged Roller Bearings, Brian Tooley Racing LS Trunnion Clips, LS Trunnion Install Washers
- Enhanced Valve Train Stability: Upgrades stock rocker arms with precision-engineered bushings, reducing friction and improving durability under high RPM conditions.
- Comprehensive Compatibility: Fits Gen 3, 4, and 5 LS engines, including 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 7.0L variants such as LS1, LS2, LS3, LS6, LS7, LQ4, and LQ9.
- High-Quality Construction: Features micro-polished hardened shafts with bronze bushing bearings, ensuring long-lasting performance and resistance to wear.
- Complete Kit: Includes 16 CHE bushing trunnions, 32 bushings, and 32 circlips—everything needed for a full engine upgrade.
- Improved Lubrication: Unique oil groove design provides superior lubrication compared to traditional needle bearing kits, enhancing longevity.
- High-Strength Construction: The Michigan Motorsports LS Rocker Arm Trunnion Kit is engineered with heavy-duty steel trunnions and high-load needle bearings, ensuring maximum durability and performance for your GM LS engine.
- Wide Compatibility: Designed to fit 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, LS1, LS2, LS3, LS6, L99, LS4, LS7, LS9, LSA, LQ4, LQ9, L76, L92, LR4, LM7, L59, LM4 engines.
- Enhanced Valve Train Stability: This kit reduces valve train wear and prevents common factory rocker arm trunnion failures, making it ideal for high-RPM and aggressive camshaft applications.
- Easy Installation: The Michigan Motorsports LS Trunnion Kit includes all necessary hardware and detailed instructions, allowing for a straightforward installation that minimizes downtime.
- Improved Performance and Reliability: By reducing friction and increasing load capacity, this trunnion upgrade improves horsepower and torque output while ensuring consistent, long-lasting performance under extreme conditions.
- Enhanced Durability with Upgraded Trunnions – Each rocker arm is equipped with high-performance trunnions, providing increased strength and smoother operation in high-RPM and high-load conditions.
- Comprehensive Set for Complete Replacement – Includes a full set of 16 rocker arms with trunnions pre-installed, facilitating a straightforward replacement process for your engine's valvetrain.
- Wide Compatibility Across LS Engines – Designed to fit a range of LS engines, including 4.8L, 5.3L, 5.7L, and 6.0L variants, ensuring broad application for various performance builds.
- Ideal for Performance Upgrades and Maintenance – Perfect for enthusiasts aiming to enhance engine performance or replace worn rocker arms to restore optimal valvetrain function.
- Bolts Not Included – Please note that mounting bolts are not included with this set; existing hardware can be reused or new bolts can be sourced separately.
Last update on 2025-07-04 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: How many trunions are in the LS7 rocker arm?
A: LS7 Rocker Arm Bushing Trunnion Upgrade Kit 7.0 427 Corvette Includes: 16 Trunions, 32 Bushings, 32 Circlips, 16 Bolts and 2 Installation Washers Fits all OEM LS Rocker Arms. Replacement Trunnion Kit for LS7 Engines Micro-polished…
Q: Can a roller trunion be used on an LS3?
A: LS3 Rocker Arms – With Roller Trunion Kit Installed. Fits L99 L76 L92 LS9 LSA These LS3 Intake Rocker Arms feature offset fulcrum for use on LS3,L99 L76 L92 LS9 LSA “square port” cylinder heads. Include new LS3 specific bolts for installation…
Q: What is the trunion kit for Michigan Motorsports?
A: Michigan Motorsports LS Rocker Arm Upgrade Trunion Kit These LS Series retrofit trunion kits are designed to convert stock LS Series rocker arms into captured roller bearing rocker arms. The factory bearings are a known failure… LS3 Rocker Arms – With upgraded Trunion Kit Installed.
Q: What kind of rocker arms do I need for trunion?
A: Fits L99 L76 L92 LS9 LSA LS Rocker Arms without Bearings Installed These are new LS style rocker arms that haven’t had bearings installed in them. Perfect rocker arms for your trunion upgrade. Includes 16 LS1 style Rocker Arms