 A cylinder bore increase to 93 mm was made to the otherwise unchanged 1.7 litre engine block.For the Volkswagen Type 2, 1972's most prominent change was a bigger engine compartment to fit the larger 1.7- to 2.0-litre engines from the Volkswagen Type 4, and a redesigned rear end which eliminated the removable rear apron.The air inlets were also enlarged to accommodate the increased cooling air needs of the larger engines.