Sale

Engines and Components Camshafts and Valvetrain

Smith Brothers

Trunnion Upgrade Kit for LS & LT Engines

$203.00 $179.99 Save $23.01

SKU: SBLST-KIT

In Stock
In Stock
Ships by Aug 4
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Smith Brothers Trunnion Upgrade Kit is engineered to replace the failure-prone needle roller bearings in OEM LS rocker arms with robust C932 bearing bronze bushings. This direct-fit replacement offers enhanced durability and reliability for LS and LT engines. The kit includes micro-polished hardened shafts that ensure longevity and efficient operation. The design of this trunnion kit aims to prevent small parts from becoming loose and potentially damaging the engine. By distributing loads over a wider area and incorporating oil channels, it ensures continuous lubrication of the rocker arm, reducing wear and extending component life. The non-adjustable rocker style is compatible with all OEM LS rocker arms.

MIA's Description

The Smith Brothers trunnion upgrade kit is a replacement trunnion kit for LS & LT engines. It features micro-polished hardened shafts with C932 bearing bronze bushings.

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

BrandSmith Brothers
Part NumberSBLST-KIT
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.

View Full Return Policy