Harmonic Balancer Bolt Chev Big Block 454 Bbc Bb Chev

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Part Number: AF37-1407the harmonic balancer bolt is designed to suit big block chev. Manufactured from aircraft quality 8740 high tensile strength chromoly steel and cold-forged to ensure molecular integrity within the stud. Meaning these are rated up to 190,000 psi making them stronger than grade 8 and oem fasteners. They feature a high hex head to prevent socket slippage while rotating the engine during assembly or routine service inspections. An extra thick ground washer is provided to allow for a more accurate, uniform torque. Show more