Speedmaster PCE276.1132 BBC 454 Forged 4340 Steel Crankshaft 4.500 Stroke 8-Counterweight

The Speedmaster PCE276.1132 is a high-performance forged crankshaft engineered for Chevy Big Block 454 applications demanding superior strength and durability. Constructed from premium 4340 forged steel, this crankshaft is built to handle substantially increased horsepower in both street and race engine builds.

Advanced Manufacturing Process:

• Precision-ground and heat-treated for optimal strength
• Shot-peened to enhance fatigue resistance
• Micro-polished for superior tolerance control and reduced friction
• Nitride-hardened surfaces for exceptional wear resistance
• Large radius on all journals for improved strength and longevity

Performance Design Features:

• 4.500-inch stroke for increased displacement and torque
• 8-counterweight design reduces individual counterweight mass
• Lightening holes in all rod throws to minimize rotational weight
• Straight-shot and chamfered oil holes for optimal lubrication
• Standard weight configuration for versatile balancing options

The innovative 8-counterweight configuration is the key to this crankshaft's performance advantage. By distributing counterweight mass across eight points instead of the traditional six, each individual counterweight is smaller and lighter. This reduction in rotational mass allows the crankshaft to accelerate faster, rev higher, and spin more efficiently while maintaining the structural integrity needed for proper balancing. The result is a crankshaft that delivers more usable power across the RPM range while maintaining the durability required for high-performance applications.

Ideal for serious engine builders looking to maximize performance without sacrificing reliability, this crankshaft represents exceptional value for professional-grade engine components.