placing the electric fan in front will actually hinder air flow, these trucks have ran just fine for 50 60 years like they came from the factory. As a matter of fact that is the one item that wasn't recommended to be modified in the old days as there was plenty of wiggle room. A blue flame six may have a bit more power, but nothing of any huge magnitude. Just get the fan and shroud where they are supposed to be and you should be just fine.
