The endorsement itself is not engine-specific, so that's not a problem.
The question is can an ASEL CFI give training in a ME airplane? Well, it depends...you cannot give training towards a ME rating, but you CAN give instrument instruction provided you have a CFII, a ME rating, and the required PIC hours in the make and model.
I suspect that the HAE falls into the same category, but I would ask the FSDO to be safe. Again don't forget the requirement for 5 hours PIC in make and model to give ANY instruction in a ME airplane.