Pioneer Automotive 859013 Harmonic Balancer Bolt Kit for Big Block Chevy

The Pioneer Automotive 859013 is a high-performance harmonic balancer bolt kit engineered specifically for big block Chevrolet engines including 366, 396, 402, 427, and 454 cubic inch V8 applications. This complete kit provides the essential hardware needed for secure harmonic balancer installation.

Key Features:

• High-tensile strength steel construction heat treated to 180,000 PSI rating
• 1/2"-20 thread size with 1.5" under head length
• Hex head design with 3/4" socket size for easy installation
• Yellow zinc dichromate finish for corrosion resistance
• Includes extra-thick 5/16" wide-area ground washer for uniform torque distribution
• High-tensile lockwasher included for secure retention
• Cold-rolled threads for superior strength and durability

Pioneer's Performance Fastener Line delivers professional-grade hardware that ensures reliable harmonic balancer retention. The hardened steel construction and precision-ground washer provide consistent clamping force, while the dichromate coating protects against rust and corrosion. This is a complete bolt kit sold individually with all necessary components for one balancer installation.