Remember when the Grand National was mfg, Im willing to bet that hp rating was so that owners could get them insured, insurance companies made their...
This is probably one of the easier engine swaps, depending on the yr engine used there may be modifications required to the wire harness since a few...
I've used them for parts and supplies back when I was making Bio Diesel a few years ago, they werent noteable but then I never had problems with them...