OER Parts offers a wide selection of Performance Ignition Coils for your 1971 GMC All Models. OER Parts offers 1971 GMC All Models Accel Super Coil, 1971 GMC All Models Accel HEI Remote Super Coil, 1971 GMC All Models MSD Street Fire Coil, 1971 GMC All Models Accel Superstock Ignition Coil, 1971 GMC All Models MSD Blaster 2 Ignition Coil, 1971 GMC All Models MSD Blaster 3 Ignition Coil, 1971 GMC All Models MSD Blaster HVC Ignition Coil, 1971 GMC All Models TSP Power Ignition Coil, and 1971 GMC All Models Pertronix Flame-Thrower Coils.