GM Ecotec Crankshaft Key Kit (4 Pack) – High-Strength Timing Gear Lock Upgrade for LSJ LNF LE5 LE9

BK Racing GM Ecotec Crankshaft Keys were developed specifically for high-performance GM Ecotec engines where the factory crankshaft timing key can become a weak point under high RPM, turbocharged, supercharged, and aggressive racing conditions.

In high horsepower Ecotec builds, crankshaft timing stability becomes critical. Increased engine load from boost pressure, aggressive camshafts, upgraded valve springs, hard launches, and sustained RPM places significantly more stress on the crankshaft timing system than the factory key was originally designed to handle.

Over time, this can contribute to:

• Crank gear movement
• Timing instability
• Damaged crank keyways
• Ignition timing inconsistency
• Timing chain alignment issues
• Severe engine damage in extreme cases

The BK Racing High-Strength Ecotec Crankshaft Key Kit was designed to provide improved crank gear retention and increased timing stability in demanding racing and high-performance applications.

The crankshaft key physically locks the crank timing gear into position and plays a critical role in maintaining accurate camshaft and ignition timing under load. While many builders focus on rods, pistons, cams, springs, and timing chains, the crankshaft key is often one of the most overlooked timing system components in serious Ecotec builds.

BK Racing Crankshaft Keys provide a stronger and more reliable interface between the crankshaft and timing gear for improved durability in high load racing environments.

Performance Benefits

• Improved crank gear retention
• Increased timing stability at high RPM
• Reduced risk of crank gear movement
• Improved reliability in turbocharged applications
• Increased durability under aggressive camshaft loads
• Better suited for racing and high horsepower builds

Features

• High-strength crankshaft key design
• Precision-machined for accurate fitment
• Designed specifically for GM Ecotec timing systems
• Ideal for racing and performance engines
• Convenient 4-pack configuration
• Excellent spare component for race teams and engine builders

Compatibility

Compatible with many GM Ecotec engines including:

• LSJ
• LNF
• LE5
• LE9
• L61
• LAP
• LAT
• LEA

Compatible with many:

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

Ideal Applications

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

Customers commonly pair the BK Racing Ecotec Crankshaft Key Kit with upgraded timing chains, fixed cam gears, solid valvetrain components, and high RPM oiling modifications for maximum timing system reliability.

When building a serious Ecotec performance engine, even the smallest timing components matter.

Professional installation recommended.

Designed for off-road and racing applications only.