Dampners/Balancers and Pulleys Dampners/Balancers and Pulleys Billet pulleys, made in USA, 199.00 each. Replaces 1962-66 A/C 3 groove pulleys, will work on other nailheads, call. High quality, comes with hardware. Pulleys, we have most, many different ones used from 1953-66, call. Pulley plate, they started using these in 1957 and most engines after that. 15.00 each used. 1962-66 401-425 stock 3 groove pulleys. call 1954-56 322 damper, The 1953 is one year only and 264 uses a cast iron pulley.. Call 57-61 364 and 59-66 401-425 Dampers, used and rebuilt.. call Seal sleeve repair kit. Fits all nailheads. 15.00 Balancer/damper bolt and washer, fits all 1957-66 nailheads and some 1955-56 engines. 3/4x16 thread. 12.00 for set new. Must be tightened to 220 lbs! New dampers, American made for 59-66 401-425 and can be re-balanced for the 364, 295.00 outright.