273 to 360 swap in a b body, any advise on an alignment problem ?

hi caferacerx,
thanks for the reply, are you referring to the rubber insulator or the steel engine mount bracket that bolts to the block. or both ? i bought new rubber insulators from the auto parts store for a 360 and they appeared to be the same as the 273 insulators. the steel engine block brackets that were on the engine that my son purchased came from a motor home and they are way different, much taller up off the frame , any idea what application i should ask for to get the correct stuff ? thanks again for any helpful info.
scott