1971 Chevrolet Pickup 396 in Burrum Heads, QLD. 1971 CHEVROLET C20 LONGHORN PICK-UP – Factory Big Block A very clean and reliable example of a Chevy C20 Longhorn Pickup with 396 big block, turbo 700r overdrive transmission, 2.8 m bed and under bed storage. accessories work perfectly. The interior is very clean with a 3 seat bench seat. This pick-up drives great on the highway with the overdrive transmission and power steering. It is suitable for transporting MX bikes, towing a drag car or a weekend dump runner.