ACCEL 59120 Performance Replacement Distributor Engineered specifically for 425 472 and 500 Cadillac V8s Direct plug in replacements with factory type connectors Centerless ground shafts with oilite bushings high dielectric strength caps and balanced rotors Steel alloy drive gears 4 pin modules magnetic pickups and adjustable vacuum advance Compatible with both flat tappet camshafts and hydraulic roller cams