if you look at the 3 motors you will see that they are different sizes wider longer in the dodge the 241 hemi and the 270 are both the same block so part will enterchange they are both low deck motors then the dodge also built a hight deck block desoto did the same thing like there low motors were 330 and 341 then you had the high deck and not much will work from dodge to desoto or to the chrysler motors