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Engines and Components› Camshafts and Valvetrain

BTR

LS3 Rocker Arms with Trunnions

Name: LS3 Rocker Arms with Trunnions
Brand: BTR
SKU: LS3RKRS-16

$329.99 $290.99 Save $39.00

SKU: LS3RKRS-16

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$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The BTR LS3 Rocker Arms with BTR Trunnions are a direct replacement for customers needing new rocker arms or lacking the tools for trunnion installation. These rocker arms come with BTR trunnions pre-installed, offering an easier alternative to upgrading factory components. The product is available with either the TK001 or TK002 trunnion options, both designed to enhance reliability and performance by replacing failure-prone factory bearings.

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The BTR LS3 Rocker Arms with BTR Trunnions provide a convenient solution for those needing replacement rocker arms or wishing to upgrade their valvetrain without the specialized tools required for manual trunnion installation. These assemblies feature either the TK001 or TK002 BTR trunnion kits pre-installed onto GM or BTR replacement rocker arms. It effectively eliminates the weak points of factory bearings with limited travel. The TK002 trunnion builds upon the TK001's design, incorporating a pressed inner race made from 52100 heat-treated bearing steel, an improvement over the 8620 carburized steel found in the TK001 and many OEM applications. The TK002 also features a self-oiling axle for priority feeding to the trunnion. This product is presented as an easy alternative for customers who do not already possess rocker arms or the necessary tools for a trunnion kit installation.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	BTR
Part Number	LS3RKRS-16
Category	Engines and Components

Videos

Install tips for the BTR shaft rocker system for LS engines.

BTR Trunnion Upgrade Installation With Paul

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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