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Engines and Components› Camshafts and Valvetrain

CHE Precision

Rocker Trunnion Kit

$265.00 $241.99 Save $23.01

SKU: 4290

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The CHE Precision 4290 is a rocker trunnion kit designed to improve the reliability of LS and LT engines. It replaces the stock caged roller bearing assembly with a precision-machined trunnion and proprietary bushing material. This upgrade maintains the low-mass rotating weight of the stock LS rocker design.

The kit is engineered for high RPM applications and is compatible with LS1, LS2, LS3, LS6, LS7, LS9, GEN5 LT1, and LT4 engines. It aims to enhance rocker arm life, especially when increased valve spring pressures and valve lift are present.

Fitment

Fitment Guaranteed

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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 Number4290
CategoryEngines and Components

Buy with Confidence

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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