Product Description

Genuine GM 12552203 Rocker Arm Pedestal Stands

OEM Rocker Pedestal Stands for Cathedral Port LS Engines

The Genuine GM 12552203 Rocker Arm Pedestal Stands are factory replacement components designed for 1997–2013 LS-based engines equipped with cathedral port cylinder heads. These OEM stands ensure proper rocker arm alignment, correct geometry, and consistent valvetrain operation, making them ideal for stock rebuilds, repairs, or refreshing high-mileage engines.

Manufactured to GM’s original specifications, these rocker arm stands provide the same durability, fitment, and reliability as the parts originally installed at the factory. They are sold as a matched pair and are intended for use with cathedral port heads only.

Key Features & Benefits

Genuine GM OEM Quality: Engineered and manufactured to meet factory GM standards for fit, strength, and longevity.
Cathedral Port Compatibility: Designed specifically for LS cathedral port cylinder heads.
Correct Valvetrain Geometry: Maintains proper rocker arm alignment and consistent lifter preload.
Ideal for Stock Rebuilds: Perfect replacement for worn, damaged, or missing OEM rocker stands.
Sold as a Pair: Includes two (2) matching rocker arm pedestal stands.

Fitment

Fits 1997–2013 LS-Based Engines with Cathedral Port Heads
Fits 4.8L, 5.3L, 5.7L Engines
Fits 2006 and earlier 6.0L Engines

Cylinder Head Casting Numbers

Engine Codes

Not Compatible With

LS3 or 6.2L Engines
2007-Later 6.0L Engines

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Product Reviews

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5
Michigan Motorsports what an awesome company!

Posted by Kevin Allen on Aug 10th 2020

I needed parts and paid the express shipping and actually received it a day earlier then expected! Earned a repeat customer.

GM 12552203 Rocker Stands for Cathedral Port LS 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS6 LQ4 LQ9 LM7 Chevy GMC Pedestals