1966 67 68 Chevelle Camaro Nova 327 283 307 Harmonic Balancer GM factory original harmonic balancer dampner for small block V-8 Chevy 327 283 and 307 motors with correct timing chain cover originally from 1967 Chevelle 327-275 HP size 6 1/8 inches wide nice clean condition $125. Shipping is available upon request pay with E transfer