Nowadays, it is observed in automobiles sector is that to improve the efficiency of vehicle its heat dissipation across engine must be instantly cooled naturally. To provide this fin of different shape is to be studied with its heat transfer parameters with the help of CFD simulations and manufacturing of optimum design to validate the results. In present research different fins of shape circular, triangularand parabolic shape are investigated to obtain maximum heat dissipation shape for 2-wheelervehicle.The main use of fins is to increase the rate of heat transfer to the environment by increasing the convection. The amount of heat transfer is determined by the amount of conduction, convection, radiation. If the temperature gradient between the object increases then the heat transfer rate also increases