Rocker Arms with Upgraded Trunion Kit Installed For 4.8 5.3 5.7 6.0 LS1 LS2 LS6

Rocker Arms with Upgraded Trunion Kit Installed for GM LS

These rocker arms come with an upgraded trunion kit already installed for 4.8 5.3 5.7 6.0 LS1 LS2 LS6 engines, replacing the factory needle-bearing trunion to reduce flex and wear in the valvetrain.

Overview

These rocker arms with the upgraded trunion kit installed are built for GM LS engines including 4.8, 5.3, 5.7, and 6.0 liters. The upgraded trunion replaces the stock caged needle bearings, a common failure point on LS1, LS2, and LS6 valvetrains. This set suits builders, racers, and rebuilders who want stronger, more stable rocker arm operation.

Built For Performance

• Upgraded trunion kit pre-installed for direct swap
• Replaces factory needle-bearing trunion design
• Reduces rocker arm flex at high rpm
• Fits GM LS1, LS2, and LS6 cylinder heads
• Suited to 4.8, 5.3, 5.7, and 6.0 liter LS engines
• Direct fit for the factory rocker mounting pedestal

Fits These Machines

• for GM 4.8L LS engines
• for GM 5.3L LS engines
• for GM 5.7L LS1 and LS6 engines
• for GM 6.0L LS2 engines

On-The-Job Use

• Camshaft and valvetrain upgrades where stock trunions fail
• High-rpm builds needing stable rocker geometry
• Engine rebuilds replacing worn factory rocker arms
• Track and street LS swaps seeking durable valve actuation

Specs At A Glance

Good To Know

Q: Do these rocker arms come with the upgraded trunion already pressed in? A: Yes, the upgraded trunion kit is installed before shipping, so no extra pressing is needed. That makes them a direct replacement for factory LS rocker arms.

Q: Will these work with a stock LS camshaft? A: They are designed as a direct-fit upgrade for 4.8, 5.3, 5.7, and 6.0 LS engines running stock or mild camshafts. Check pushrod length and valve lash after installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.