✅Note: May Not Fit With Aluminum Pulleys, Check Dimensions!
✅Compatibility: Big Block Che-vro-let 366 396 402 427 454 Engines. May Not Fit With Aluminum Pulleys, Check Dimensions!
✅Product specification: Grade 8 harmonic balancer bolt, 1/2" - 20 Threads, 1.500" Under Head Length, 1/4" Thick Washer, Lock Washer, 3/4" Hex Head
✅Package Includes: 1 x Harmonic Balancer Bolt Kit Pulley Bolt Kit / Features: Durable, Easy Installation, Easy to Use, Corrosion Resistant / Fitment Type: Direct Replacement / Material: Steel
✅1 Year Unlimited-mileage Quality Guarantee. Please feel free to contact us if you have any questions. Fits models with years 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972