66 Dart 360 Swap Questions

Some slant 6's (mostly A/C cars) came from the factory with 22" radiators too (part number 2582929). Some had 3 row cores too, which would be even better than the standard cooling (2 row core) that came with the 273. They could be used with a V8 by changing the inlet and outlet connections (and their locations) on the radiator tanks. Any good radiator shop should be able to do that. The factory A/C slant 6 cars came with a shroud too, but, those don't fit a V8 without some serious cutting and modifications due to the fan location between the two engines.