 The heat 1 see Juan Manuel Fangio and Luigi Villoresi fight for the first position but the Italian driver must enter in pit to repair an oil pump problem.Luigi Villoresi lost 5 laps and Juan Manual Fangio finish the 50 laps first with 25 seconds behind Prince Bira.In the second heat, Prince Bira take immediately the lead behind Juan Manuel Fangio who keep a close gap with the Siam driver.