GM Ecotec Short Chain Balance Shaft Delete Kit – LSJ LNF LE5 LE9 2.0L 2.2L 2.4L High RPM Racing Conversion

Most Ecotec “balance shaft deletes” still leave unnecessary rotating mass, chain drag, and oil system instability spinning inside the engine. Learn why serious high-RPM racers are moving to true short chain balance shaft delete systems and complete timing stability upgrades.

The BK Racing GM Ecotec Short Chain Balance Shaft Delete Kit was developed for high RPM GM Ecotec racing engines where improved oil system control, reduced rotating mass, and simplified oiling become important for long-term reliability.

Factory balance shafts were designed primarily to reduce engine vibration and improve comfort in OEM street vehicles — not for sustained high RPM racing environments, aggressive cornering loads, turbocharged power levels, or dedicated competition engines.

As RPM and engine load increase, the factory balance shaft system introduces additional rotating mass, added oil system complexity, additional chain load, and extra components that can become failure points in serious racing applications.

The BK Racing Short Chain Balance Shaft Delete Kit removes the factory balance shaft assembly while converting the engine to a simplified short chain oil pump drive system commonly preferred in high RPM Ecotec builds.

This setup reduces rotating mass, simplifies the lower end oiling system, and eliminates unnecessary balance shaft components often removed in dedicated race engines.

Unlike neutral balance shaft or cut shaft setups, the BK Racing system fully removes the balance shaft assembly and associated rotating components for a cleaner and more complete racing conversion.

Performance Benefits

• Reduced rotating mass
• Simplified oiling system
• Eliminates factory balance shaft assembly
• Reduced oil pump drive complexity
• Improved engine reliability in racing applications
• Reduced potential failure points
• Cleaner lower end engine configuration
• Ideal for high RPM and dedicated race engines

Features

• Short chain oil pump conversion design
• Precision-machined components
• Designed specifically for GM Ecotec engines
• High-quality materials for racing durability
• Eliminates factory balance shaft assembly
• Simplified oil pump drive configuration

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
• Pontiac G5
• Pontiac Solstice
• Saturn Ion
• Saturn Sky
• Chevrolet Cavalier Ecotec swaps
• Other GM Ecotec applications

Ideal Applications

• Circle track racing
• Drag racing
• Road racing
• High RPM naturally aspirated engines
• Turbocharged Ecotec builds
• Supercharged Ecotec builds
• Dedicated race engines

What’s Included

• BK Racing Short Chain Balance Shaft Delete Components
• Required installation hardware
• Components required for short chain oil pump conversion

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Frequently Paired With:

1.  BK Racing Upper Timing Chain Kits
   1. Serious high-RPM Ecotec race engines require the entire oiling and timing system to work together. BK Racing Short Chain Balance Shaft Delete Kits are commonly paired with the following performance upgrades for improved oil control, reliability, and sustained RPM durability.
2. Oil Canister Bypass Systems
   1. Factory Ecotec canister filters can become restrictive during sustained high-RPM racing conditions. Many racers use oil canister bypass systems to simplify the oiling system and improve oil flow stability.
3. Oil Pressure Gauge Line Kits
   1. Stable oil pressure is critical in turbocharged and high-RPM Ecotec applications. Oil pressure gauge line kits help racers monitor pressure fluctuations before bearing damage occurs.
4. Oil Temp Warning Light Kits
   1. High oil temperatures quickly reduce oil protection under sustained racing conditions. Oil temp warning systems help drivers identify dangerous temperatures before oil breakdown and engine damage occur.
5. Piston Oil Squirter Block-Off Plugs
   1. Many dedicated race engines redirect oil flow away from the factory piston oil squirters to improve oil pressure stability and prioritize oil delivery to critical engine components.
6. High RPM Timing Stability Systems
   1. Manual Timing Chain Tensioners
   2. Upper Timing Guide Bolts
   3. Upgraded Rail Guides (Oil Impregnated) 
   4. Adjustable Cam Gears
      1. L61/LSJ Adjustable Gears 
      2. VVT Cam Locking Hubs 
7. 83lb Valve Springs & Solid Lash Adjusters
   1. High-RPM race engines often combine short chain balance shaft delete systems with upgraded valvetrain control packages for improved sustained RPM reliability and reduced valvetrain instability.

High-RPM race engines often combine short chain balance shaft delete systems with upgraded valvetrain control packages for improved sustained RPM reliability and reduced valvetrain instability.

When building a serious Ecotec race engine, the oiling system, timing system, and valvetrain should always be treated as a complete high-RPM reliability system — not individual upgrades installed separately.

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If you are still running neutral balance shafts or cut-off shaft setups in a serious Ecotec race engine, you are still carrying unnecessary rotating mass, chain drag, and additional failure points inside the engine.

The BK Racing GM Ecotec Short Chain Balance Shaft Delete Kit is the next evolution in high RPM Ecotec reliability and performance.

Professional installation recommended.

Designed for off-road and racing applications only.