Engines and Components› Camshafts and Valvetrain

CHE Precision

LS1/LS2/LS6 Rocker Arm Bushing Kit

$17.99

SKU: CHE-4290-Trunnion

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

This kit replaces the stock roller bearing assembly with CHE's proprietary material bushings, allowing the rocker arms to better withstand the stresses of high RPM race engines. It is designed as a direct replacement for LS1, LS2, and LS6 rockers, offering enhanced durability.
Show original supplier description
The CHE Precision LS & LT Rocker Trunnion Kit (CHE4290) is engineered to significantly enhance the reliability of LS and LT series engines, particularly at high RPMs. This kit addresses a common failure point in factory production rocker arms, which often utilize roller bearings prone to failure under extreme conditions. By replacing the stock caged roller bearing assembly with CHE Precision's proprietary material bushings, this trunnion kit allows the rocker arms to endure the rigors of high-RPM operation and demanding race applications.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCHE Precision
Part NumberCHE-4290-Trunnion
CategoryEngines and Components
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy