BTW: I have no luck dropping the rad out the bottom. I remove the grill, loosen the rod that goes between the inner fenders, twist rad and pull out the front. Just need a little wiggle room between the innerfenders and wings.
Remember to ground the rad or else Your temp gauge will not work.
OOPS! Just read Arwyin's post. I also remove the cowl. I use allen head 10-24 bolts. It is easier to get a allen wrench in this tight area. In fact I braze allen wrench into bolt and use a 1/4" air wrench with a long extension. I just must remove the cowl too othen for one reason or another and this makes it very easy.
