| 1st | 6 | Regazzoni / Brian Redman | Ferrari 312 PB | Ferrari-Sefac | 1:19.7000 |
| 2nd | 5 | Jacky Ickx / Mario Andretti | Ferrari 312 PB | Ferrari-Sefac | 1:20.3000 |
| 3rd | 7 | Chris Craft / Mike Hailwood | Chevron B19 Chevrolet Vega | Team Gunston/Richter Motors | 1:23.5000 |
| 4th | 3 | Richard Attwood / Dave Charlton | Porsche 917 K | Lucky Strike Racing/David R. Piper | 1:24.4000 |
| 5th | 14 | John Hine / Peter de Klerk | Chevron B19 Ford | Lucky Strike Racing/Team Red Rose | 1:24.6000 |
| 6th | 4 | Tony Adamowicz / Mario Casoni | Porsche 917 K | Lucky Strike Racing/David R. Piper | 1:25.2000 |
| 7th | 8 | Helmut Marko / John Love | Lola T212 Ford | Team Gunston/K. von Wendt | 1:25.6000 |
| 8th | 10 | Gijs van Lennep / Jackie Pretorius | Lola T212 Ford | Corlette Drive Estates/K. von Wendt | 1:25.6000 |
| 9th | 9 | Howden Ganley / Paddy Driver / Mike Hailwood | Chevron B19 Ford | Team Gunston/Richter Motors | 1:25.9000 |
| 10th | 15 | Ed Swart / Jody Scheckter | Chevron B19 Ford | Team Wynn's | 1:26.4000 |
| 11th | 12 | Guy Edwards / Terry Croker | Lola T212 Ford | Philips Autoradio | 1:29.0000 |
| 12th | 16 | Dirk Marais / John Abrahams | Chevron B19 Ford | Ray's Racing | 1:29.1000 |
| 13th | 17 | Bruce van der Merwe / John Conchie | Chevron B8 BMW | Jack Holme Racing | 1:34.2000 |
| 14th | 20 | Geoff Ortlepp / Stan Taylor | Chevron B8 BMW | Scuderia Los Amigos | 1:36.0000 |
| 15th | 24 | Dieter Glemser / Jochen Mass | Ford Capri RS 2900 | Ford | 1:36.0000 |
| 16th | 19 | Red Whitehouse / John Truter | Porsche 906 Spyder | Clive van Buuren | 1:37.0000 |
| 17th | 22 | Rob Grant / Willie Tuckett | Chevron B8 BMW | Robert Grant | 1:37.2000 |
| 18th | 18 | John Rowe / Tim Hooper | Chevron B8 Vegatune | John Rowe Motors | 1:38.5000 |
| 19th | 25 | Basil van Rooyen / Peter Gough | Mazda M10A | Tean Lawson/Mazda | 1:38.7000 |
| 20th | 26 | Scamp Porter / Colin Burford | Mazda M10A | Tean Lawson/Mazda | 1:40.2000 |
| 21st | 27 | Arnold Chatz / Eric Adler | Alfa Romeo GTAm | Alfa Romeo S.A. | 1:41.3000 |
| 22nd | 30 | Rosemary Smith / Dave Clapham | Mazda M10A | Tean Lawson/Mazda | 1:43.2000 |
| 23rd | 31 | Geoff Mortimer / Chris Swanepoel | Toyota Corona | Team Toyota | 1:44.2000 |
| 24th | 23 | Joss Viljoen / Mike Lester | Lotus 23B | Harbourview Garage | 1:45.7000 |
| 25th | 28 | Jan Hettema / Herman Fekken | Ford Escort RS | Team Molyslip | 1:46.0000 |
| 26th | 36 | Richard Sterne / Ken Gray | Alfa Romeo Berlina | Alfa Romeo South Africa | 1:46.1000 |
| 27th | 29 | J. Hertle / Mike Ogilvie | BMW 2002 TI | M. Harburn | 1:46.7000 |
| 28th | 21 | Chris Rose-Gold / James Henderson | Lotus 23B | Blackwood Hodge Racing Team | 1:46.8000 |
| 29th | 39 | John Barnes / Gordon Briggs | Ford Capri 2000 GT | Team Pioneer Ford | 1:47.0000 |
| 30th | 35 | John Lauryssen / Meyer Botha | Alfa Romeo GTV | Venturi Motors | 1:47.1000 |
| 31st | 37 | John Heath / Frank Rundel | Fiat 124S Coupé | Team Kenyon | 1:47.6000 |
| 32nd | 40 | Alain Lavoipierre / Bob Delport | Renault 8 Gordini | Bic Pens | 1:48.3000 |
| 33rd | 41 | Peter Dykins / Ian Smith | Mini Cooper S | McCarthy-Leykor-Dykins | 1:48.3000 |
| 34th | 34 | Dan Thomas / Roy Thomas | Chevrolet Firenza | Transvaal Motors | 1:49.5000 |
| 35th | 42 | Giv Giovannoni / Fanie Viljoen | Mini Cooper S | Leyland Motor Corporation | 1:50.5000 |
| 36th | 33 | Bob Thomas / Rob Thomas | Chevrolet Firenza | Transvaal Motors | 1:51.3000 |
| 37th | 2 | Herbert Müller / René Herzog | Ferrari 512 M | Villager Cigar/Team Mueller | |
| 38th | 11 | André Verwey / Eddie Keizan | Lola T212 Ford | Corlette Drive Estates/André Verwey | |
| 39th | 32 | Dan Thomas / Roy Thomas | Vauxhall Viva GT | Transvaal Motors | |
| 40th | 38 | Denis Joubert / Clarrie Taylor | Datsun 1600 SSS | Datsun Nissan Racing | |