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SKU:
NLT1I00202
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16 LS Rocker Arms with Installed Upgraded Trunnion Kit 4.8-6.0L
$141.99
In Stock
$141.99
Sale price
$141.99
Regular price
This new aftermarket set of 16 GM LS-style rocker arms arrives with an upgraded trunnion kit installed for compatible 4.8L, 5.3L, 5.7L, and 6.0L Gen III applications.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- GM Gen III LS 4.8L and 5.3L applications with matching pedestal rockers
- GM LS1 / LS6 5.7L applications with matching rocker design
- GM LQ4 / LQ9 and compatible 6.0L applications
- LS2 applications only where rocker dimensions and ratio match
Product Overview
Needle-bearing play, a loose trunnion, valvetrain noise, or a rocker damaged during a cam and spring upgrade can put an LS build on hold. This complete set replaces all 16 rockers and avoids pressing the trunnion conversion into used arms yourself.
LS engines share many parts, but not every head, rocker ratio, pedestal, bolt, and clearance setup is the same. Verify engine generation, cylinder heads, ratio, valve springs, pushrod length, and included hardware. Always check geometry and piston-to-valve clearance on modified engines.
Key Features & Performance
- Complete 16-rocker set for one V8
- Upgraded trunnion assemblies already installed
- Useful for stock refreshes and compatible performance builds
- Replaces worn rocker pivot components as a set
Common Uses
- Replacing a rocker with trunnion play
- Preparing a valvetrain for a compatible camshaft and spring upgrade
- Refreshing all rockers during cylinder-head service
Technical Specifications
- Product Type: Rocker arm set with trunnion upgrade
- Quantity: 16 rocker arms
- Engine Family: GM LS-style V8
- Hardware: Included only as shown
- Condition: New aftermarket set
Installation & Fitment
- Clean and inspect every oil passage
- Confirm rocker ratio and pedestal geometry
- Measure pushrod length and verify valve-spring clearance
- Use correct fasteners, lubricant, sequence, and torque
- Rotate the engine by hand and inspect valvetrain sweep before startup
Compatibility Notice
Northline Parts does its best to list all known compatible models. The correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Are the trunnions already installed? A: Yes. The listing identifies the upgraded trunnion kit as installed in the rocker arms.
Q: Does the set include rocker bolts? A: Confirm the product photos; do not assume unpictured bolts are included.
Q: Will these work with any LS cam? A: No. Cam, springs, pushrods, heads, geometry, and clearances must be checked as a system.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: LS rocker arms trunnion upgrade, 16 piece LS1 rocker set, 5.3 rocker arm replacement, LS valvetrain trunnion kit installed, 4.8 5.7 6.0 rocker arms
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.