Speedmaster PCE276.1132 Chevy BBC 454 4340 Forged Steel Performance Crankshaft 8-Counterweight

The Speedmaster PCE276.1132 is a forged steel crankshaft engineered for Chevy BBC (Big Block Chevrolet) 454 engines. Built from 4340 forged steel with an 8-counterweight design, this performance crankshaft delivers the strength and durability demanded by high-horsepower builds and racing applications. The robust construction supports increased boost, nitrous, and forced-induction setups while maintaining precise stroke geometry (4.500" stroke) for reliable power delivery.

This crankshaft is ideal for engine builders, hot rod enthusiasts, and performance shops looking to upgrade beyond stock components. The 8-counterweight configuration provides superior balance and reduces vibration during sustained high-RPM operation. Compatible with standard BBC 454 block and main bearing specifications, it integrates seamlessly into rebuild and performance upgrade projects. The forged steel construction ensures longevity under demanding driving conditions and tuning applications.

Key Features & Benefits

• 4340 Forged Steel: Premium material construction provides superior strength and fatigue resistance for high-performance applications.
• 8-Counterweight Design: Optimized counterweight geometry reduces vibration and improves engine balance at elevated RPM.
• 4.500" Stroke: Precise stroke dimension maintains proper engine geometry for BBC 454 compatibility and performance.
• BBC 454 Fitment: Direct fit for Chevy Big Block 454 engines with standard main bearing specifications.

Specifications

Ideal Applications

• High-performance engine builds and racing applications
• Supercharged and nitrous oxide-assisted BBC 454 engines
• Hot rod and custom engine rebuilds
• Drag racing and motorsport competition engines