GM Ecotec Inner Balance Shaft Delete Sleeves

Ecotec Inner Balance Shaft Delete Sleeves (Set of 2)

The BK Racing Ecotec Inner Balance Shaft Delete Sleeves are designed to properly block the inner oil passages during GM Ecotec balance shaft delete conversions.

When removing the factory balance shaft assembly, the inner oil passages must be correctly sealed to maintain proper oil pressure and prevent internal oil leakage. These precision-machined sleeves provide a reliable solution for properly completing the inner portion of the balance shaft delete system.

Designed specifically for GM Ecotec engines, the BK Racing Inner Delete Sleeves are manufactured for accurate fitment and secure installation in demanding racing and high-performance applications.

These sleeves are commonly used in high RPM Ecotec builds where racers and engine builders simplify the oiling system by removing the factory balance shaft assembly.

Performance Benefits

• Properly blocks inner balance shaft oil passages
• Helps maintain proper oil pressure
• Supports complete balance shaft delete conversions
• Simplifies lower end oiling configuration
• Reduced rotating mass when combined with full balance shaft delete systems
• Ideal for racing and high RPM applications

Features

• Precision-machined aluminum construction
• Designed specifically for GM Ecotec engines
• Accurate press-fit installation
• Set of 2 inner delete sleeves
• Compatible with stock and modified timing systems
• Durable construction for demanding racing environments

Compatibility

Compatible with many GM Ecotec engines including:

2.0L Ecotec
• LSJ
• LNF
• LDK
• LHU

2.2L Ecotec
• L61
• LAP
• LE8

2.4L Ecotec
• LE5
• LE9
• LAT
• LAF
• LEA
• LUK

Compatible with many:

• Chevrolet Cobalt
• Chevrolet HHR
• Chevrolet Malibu
• Chevrolet Equinox
• Pontiac Solstice
• Pontiac G5
• Pontiac G6
• Saturn Ion
• Saturn Sky
• Saturn Vue
• Saturn Aura
• Saab 9-3
• Buick Regal
• Buick Verano
• GMC Terrain
• Polaris Slingshot
• Custom Ecotec swaps

Important Notes

• Inner balance shaft oil passages must be properly blocked
• Commonly paired with BK Racing Short Chain Balance Shaft Delete 
• Professional installation recommended
• Intended for off-road and racing applications only

High-RPM race engines often combine balance shaft delete systems with upgraded valvetrain control packages, oiling upgrades, and timing system modifications for improved sustained RPM reliability.

Customers commonly pair these bushings with short chain balance shaft delete kits, oil filter canister bypass systems, oil temperature monitoring upgrades, adjustable cam gears, and high RPM valvetrain components for dedicated racing applications.