Harmonic Balancer Bolt Pulley Bolt Kit Replacement for Chevy Big Block 366 396 402 427 454 Engines 1965 1972

Feature: 1. Precision Fit: Specifically designed as replacement for Chevy Big Block 366 396 402 427 454 Engines 1965 1972, ensuring optimal compatibility and performance for your engine. 2. Heavy Duty: Featuring grade 8 steel hardware, with 1 2in 20 threads, this harmonic balancer bolt kit provides maximum strength and durability, allowing for reliable performance in demanding conditions. 3. Size: The under head length is 1.500 inches, with a hex head size of 3 4 inches and washer thickness of 1 4 inches, ensuring proper installation without compromises on fit. 4. Quick Engine Recovery: This harmonic balancer bolt kit, paired with the pulley bolt kit, helps the engine quickly resume operation, enhancing overall engine efficiency and performance during use. 5. Easy Installation and Removal: Designed for user convenience, this harmonic balancer bolt kit allows for straightforward installation and removal, making maintenance and repairs hasslefree for engine enthusiasts. Specification: Item Type: Harmonic Balancer Bolt and Pulley Bolt Kit Harmonic Balancer Bolt Grade: 8 Thread Size: 1 2in 20 Bolt Under Head Length: 1 1 2in Washer Thickness: 1 4in Lock Washer: Yes Head Type: 3 4in Hex Fitment: Replacement for Chevy Big Block 366 396 402 427 454 Engines (1965 1972) May Not Fit With Aluminum Pulleys, Check Dimensions!. Package List: 4 x Bolt 4 x Washer 1 x Shim Note: Installation Notice: May not apply to aluminum pulleys. Please confirm your pulley type before purchase