Question: what is the difference between a land rover series 2 and 2a

title: Land Rover Series
text: The SII and the SIIA are very difficult to distinguish . There were some minor cosmetic changes , but the most significant change was under the bonnet in the guise of the new 2.25 - litre diesel engine . Body configurations available from the factory ranged from short - wheelbase soft - top to the top - of - the - line five - door station wagon . In 1967 a 2.6 - litre inline six cylinder petrol engine was introduced for the long - wheelbase models , which also had servo - assisted brakes . 811 of these were NADA ( or North American Dollar Area ) trucks , which were the only long - wheelbase models made for the American and Canadian markets . 

Answer: answer: The Land Rover SII and the SIIA are very difficult to distinguish. The most significant change was under the bonnet in the guise of the new 2.25 - liter diesel engine.  In 1967 a 2.6 - liter inline six cylinder petrol engine was introduced for the long wheelbase models.